Microsoft/alguidelines
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
alguidelines/docs/patterns/generic-method-pattern/index.html
JeremyVyska f65c30129b deploy: 8f52709dc8
2022-06-24 12:55:52 +00:00

178 lines
No EOL
149 KiB
HTML
Raw Blame History

<!doctype html><html lang=en class=no-js><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=generator content="Hugo 0.101.0"><meta name=robots content="index, follow"><link rel="shortcut icon" href=/favicons/favicon.ico><link rel=apple-touch-icon href=/favicons/apple-touch-icon-180x180.png sizes=180x180><link rel=icon type=image/png href=/favicons/favicon-16x16.png sizes=16x16><link rel=icon type=image/png href=/favicons/favicon-32x32.png sizes=32x32><link rel=icon type=image/png href=/favicons/android-36x36.png sizes=36x36><link rel=icon type=image/png href=/favicons/android-48x48.png sizes=48x48><link rel=icon type=image/png href=/favicons/android-72x72.png sizes=72x72><link rel=icon type=image/png href=/favicons/android-96x96.png sizes=96x96><link rel=icon type=image/png href=/favicons/android-144x144.png sizes=144x144><link rel=icon type=image/png href=/favicons/android-192x192.png sizes=192x192><title>Generic Method | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="Created by Gary Winter (Cloud Ready Software), Described by waldo (iFacto Business Solutions | Dynex)
Abstract
The goal of this pattern is to …"><meta property="og:title" content="Generic Method"><meta property="og:description" content="Created by Gary Winter (Cloud Ready Software), Described by waldo (iFacto Business Solutions | Dynex)
Abstract The goal of this pattern is to facilitate a lot of things in one single awesome way of writing code. If you apply this pattern as a general pattern, you&rsquo;ll implement:
Extensibility Decoupling Readability Testability Encapsulation Context Whenever you have to write an isolated piece of business logic, this pattern should be applicable.
Problem Usually, when you ask people where to place code, they all have their own opinion: on a table or page, or in some kind of codeunit library where lots of functions will be placed, or ."><meta property="og:type" content="article"><meta property="og:url" content="https://alguidelines.dev/docs/patterns/generic-method-pattern/"><meta property="og:image" content="https://alguidelines.dev/images/og-image-fission.png"><meta property="article:section" content="docs"><meta property="article:modified_time" content="2022-02-24T15:36:06-08:00"><meta property="og:site_name" content="alguidelines.dev - Business Central Design Patterns"><meta itemprop=name content="Generic Method"><meta itemprop=description content="Created by Gary Winter (Cloud Ready Software), Described by waldo (iFacto Business Solutions | Dynex)
Abstract The goal of this pattern is to facilitate a lot of things in one single awesome way of writing code. If you apply this pattern as a general pattern, you&rsquo;ll implement:
Extensibility Decoupling Readability Testability Encapsulation Context Whenever you have to write an isolated piece of business logic, this pattern should be applicable.
Problem Usually, when you ask people where to place code, they all have their own opinion: on a table or page, or in some kind of codeunit library where lots of functions will be placed, or ."><meta itemprop=dateModified content="2022-02-24T15:36:06-08:00"><meta itemprop=wordCount content="1999"><meta itemprop=image content="https://alguidelines.dev/images/og-image-fission.png"><meta itemprop=keywords content="AL,Decoupling,Readability,Testability,Extendability,"><meta name=twitter:card content="summary_large_image"><meta name=twitter:image content="https://alguidelines.dev/images/og-image-fission.png"><meta name=twitter:title content="Generic Method"><meta name=twitter:description content="Created by Gary Winter (Cloud Ready Software), Described by waldo (iFacto Business Solutions | Dynex)
Abstract The goal of this pattern is to facilitate a lot of things in one single awesome way of writing code. If you apply this pattern as a general pattern, you&rsquo;ll implement:
Extensibility Decoupling Readability Testability Encapsulation Context Whenever you have to write an isolated piece of business logic, this pattern should be applicable.
Problem Usually, when you ask people where to place code, they all have their own opinion: on a table or page, or in some kind of codeunit library where lots of functions will be placed, or ."><link rel=preload href=/scss/main.min.84a617ff0c0265eb62b5cd2929c572f4ed37dc4907d0cf068be4eb2974f6d60f.css as=style><link href=/scss/main.min.84a617ff0c0265eb62b5cd2929c572f4ed37dc4907d0cf068be4eb2974f6d60f.css rel=stylesheet integrity><script src=https://code.jquery.com/jquery-3.6.0.min.js integrity=sha384-vtXRMe3mGCbOeY7l30aIg8H9p3GdeSe4IFlP6G8JMa7o7lXvnz3GFKzPxzJdPfGK crossorigin=anonymous></script>
<script src=https://unpkg.com/lunr@2.3.9/lunr.min.js integrity=sha384-203J0SNzyqHby3iU6hzvzltrWi/M41wOP5Gu+BiJMz5nwKykbkUx8Kp7iti0Lpli crossorigin=anonymous></script></head><body class=td-page><header><nav class="js-navbar-scroll navbar navbar-expand navbar-dark flex-column flex-md-row td-navbar"><a class=navbar-brand href=/><img src=/images/SiteLogo.png height=32px>
<span class="font-weight-bold show-desktop">alguidelines.dev - Business Central Design Patterns</span>
<span class="font-weight-bold show-mobile-inline">alguidelines.dev</span></a><div class="td-navbar-nav-scroll ml-md-auto" id=main_navbar><ul class="navbar-nav mt-2 mt-lg-0"><li class="nav-item mr-4 mb-2 mb-lg-0"><a class=nav-link href=/docs/><i class='fas fa-book'></i><span>Docs</span></a></li><li class="nav-item mr-4 mb-2 mb-lg-0"><a class=nav-link href=https://github.com/microsoft/alguidelines/discussions/ target=_blank><i class='fas fa-comments'></i><span>Discussions</span></a></li><li class="nav-item mr-4 mb-2 mb-lg-0"><a class=nav-link href=https://github.com/microsoft/alguidelines target=_blank><i class='fab fa-github'></i><span>GitHub</span></a></li><li class="nav-item mr-4 mb-2 mb-lg-0"><a class=nav-link href=https://discord.gg/4wbfNv3 target=_blank><i class='fab fa-discord'></i><span>Discord</span></a></li></ul></div><div class="navbar-nav d-none d-lg-block"><input type=search class="form-control td-search-input" placeholder="&#xf002; Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.d987337ebb3d904634c644c820486676.json data-offline-search-base-href=/ data-offline-search-max-results=10></div></nav></header><div class="container-fluid td-outer"><div class=td-main><div class="row flex-xl-nowrap"><aside class="col-12 col-md-3 col-xl-2 td-sidebar d-print-none"><div id=td-sidebar-menu class=td-sidebar__inner><div id=content-mobile><form class="td-sidebar__search d-flex align-items-center"><input type=search class="form-control td-search-input" placeholder="&#xf002; Search this site…" aria-label="Search this site…" autocomplete=off data-offline-search-index-json-src=/offline-search-index.d987337ebb3d904634c644c820486676.json data-offline-search-base-href=/ data-offline-search-max-results=10>
<button class="btn btn-link td-sidebar__toggle d-md-none p-0 ml-3 fas fa-bars" type=button data-toggle=collapse data-target=#td-section-nav aria-controls=td-docs-nav aria-expanded=false aria-label="Toggle section navigation"></button></form></div><div id=content-desktop></div><nav class="collapse td-sidebar-nav" id=td-section-nav><ul class="td-sidebar-nav__section pr-md-3 ul-0"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-docs-li><a href=/docs/ title="AL Guidelines" class="align-left pl-0 td-sidebar-link td-sidebar-link__section tree-root" id=m-docs><span>Docs</span></a><ul class=ul-1><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child active-path" id=m-docspatterns-li><a href=/docs/patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docspatterns><span>Design Patterns</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsapi-register-fieldset-li><a href=/docs/patterns/api-register-fieldset/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsapi-register-fieldset><span>API Register Fieldset</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternscommand-queue-li><a href=/docs/patterns/command-queue/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternscommand-queue><span>Command Queue</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsapi-delegate-operation-li><a href=/docs/patterns/api-delegate-operation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsapi-delegate-operation><span>Delegate API Operation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsevent-bridge-pattern-li><a href=/docs/patterns/event-bridge-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsevent-bridge-pattern><span>Event Bridge</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsfacade-pattern-li><a href=/docs/patterns/facade-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsfacade-pattern><span>Façade</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsgeneric-method-pattern-li><a href=/docs/patterns/generic-method-pattern/ class="align-left pl-0 active td-sidebar-link td-sidebar-link__page" id=m-docspatternsgeneric-method-pattern><span class=td-sidebar-nav-active-item>Generic Method</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternsno-series-li><a href=/docs/patterns/no-series/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternsno-series><span>No. Series</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child" id=m-docspatternstemplate-method-pattern-li><a href=/docs/patterns/template-method-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docspatternstemplate-method-pattern><span>Template Method Pattern</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsbestpractices-li><a href=/docs/bestpractices/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsbestpractices><span>Best Practices</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesapi-page-li><a href=/docs/bestpractices/api-page/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesapi-page><span>API Page / Query</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbegin-as-an-afterword-li><a href=/docs/bestpractices/begin-as-an-afterword/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbegin-as-an-afterword><span>begin as an afterword</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbegin-end-li><a href=/docs/bestpractices/begin-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbegin-end><span>Begin-End - Compound Only</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesbinary-operator-line-start-li><a href=/docs/bestpractices/binary-operator-line-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesbinary-operator-line-start><span>Binary Operator to Start Line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescase-actions-li><a href=/docs/bestpractices/case-actions/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescase-actions><span>CASE Action on next line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescomments-spacing-li><a href=/docs/bestpractices/comments-spacing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescomments-spacing><span>Comment Spacing</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticescustomtelemetry-li><a href=/docs/bestpractices/customtelemetry/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticescustomtelemetry><span>Custom Telemetry</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesdeleteall-li><a href=/docs/bestpractices/deleteall/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesdeleteall><span>DeleteAll</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesend-else-pair-li><a href=/docs/bestpractices/end-else-pair/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesend-else-pair><span>end else pair</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesistemporary-table-safeguard-li><a href=/docs/bestpractices/istemporary-table-safeguard/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesistemporary-table-safeguard><span>IsTemporary record safeguard</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticeskeyword-pairs-indentation-li><a href=/docs/bestpractices/keyword-pairs-indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticeskeyword-pairs-indentation><span>Keyword Pairs - Indentation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesline-start-keywords-li><a href=/docs/bestpractices/line-start-keywords/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesline-start-keywords><span>Line Start Keywords</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticeslonely-repeat-li><a href=/docs/bestpractices/lonely-repeat/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticeslonely-repeat><span>Lonely Repeat</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesnamed-invocations-li><a href=/docs/bestpractices/named-invocations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesnamed-invocations><span>Named Invocations</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesone-statement-per-line-li><a href=/docs/bestpractices/one-statement-per-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesone-statement-per-line><span>One Statement per Line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesseparate-if-and-else-li><a href=/docs/bestpractices/separate-if-and-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesseparate-if-and-else><span>Seperate if and else</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesspacing-binary-operators-li><a href=/docs/bestpractices/spacing-binary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesspacing-binary-operators><span>Spacing Binary Operators</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticessubscribercodeunits-li><a href=/docs/bestpractices/subscribercodeunits/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticessubscribercodeunits><span>Subscriber Codeunits</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticessuggested-abbreviations-li><a href=/docs/bestpractices/suggested-abbreviations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticessuggested-abbreviations><span>Suggested Abbreviations</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesunnecessary-else-li><a href=/docs/bestpractices/unnecessary-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesunnecessary-else><span>Unnecessary else</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesunnecessary-truefalse-li><a href=/docs/bestpractices/unnecessary-truefalse/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesunnecessary-truefalse><span>Unnecessary true/false</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesvariable-naming-li><a href=/docs/bestpractices/variable-naming/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesvariable-naming><span>Variable Naming</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesvariables-declarations-order-li><a href=/docs/bestpractices/variables-declarations-order/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesvariables-declarations-order><span>Variables Declarations Order</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsbestpracticesblank-lines-li><a href=/docs/bestpractices/blank-lines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsbestpracticesblank-lines><span>When not to use Blank Lines</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docsnavpatterns-li><a href=/docs/navpatterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns><span>NAV Patterns Archive</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatterns-li><a href=/docs/navpatterns/patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatterns><span>1. Patterns</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsactivity-log-li><a href=/docs/navpatterns/patterns/activity-log/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsactivity-log><span>Activity Logs</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsargument-table-li><a href=/docs/navpatterns/patterns/argument-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsargument-table><span>Argument Table</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternsblocked-entity-li><a href=/docs/navpatterns/patterns/blocked-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsblocked-entity><span>Blocked Entity</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsblocked-entitydata-driven-blocked-entity-li><a href=/docs/navpatterns/patterns/blocked-entity/data-driven-blocked-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsblocked-entitydata-driven-blocked-entity><span>Data Driven Blocked Entity</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscached-web-service-calls-li><a href=/docs/navpatterns/patterns/cached-web-service-calls/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscached-web-service-calls><span>Cached Web Server Calls</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsconditional-cascading-update-li><a href=/docs/navpatterns/patterns/conditional-cascading-update/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsconditional-cascading-update><span>Conditional Cascading Update</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscopy-document-li><a href=/docs/navpatterns/patterns/copy-document/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscopy-document><span>Copy Document</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscreate-data-from-templates-li><a href=/docs/navpatterns/patterns/create-data-from-templates/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreate-data-from-templates><span>Create Data from Templates</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscreate-urls-to-nav-clients-li><a href=/docs/navpatterns/patterns/create-urls-to-nav-clients/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreate-urls-to-nav-clients><span>Create URLs to NAV Clients</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscreating-custom-charts-li><a href=/docs/navpatterns/patterns/creating-custom-charts/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscreating-custom-charts><span>Creating Custom Charts</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscross-session-events-li><a href=/docs/navpatterns/patterns/cross-session-events/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscross-session-events><span>Cross Session Events</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternscurrently-active-record-li><a href=/docs/navpatterns/patterns/currently-active-record/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternscurrently-active-record><span>Currently Active Record</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsdata-migration-facade-li><a href=/docs/navpatterns/patterns/data-migration-facade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdata-migration-facade><span>Data Migration Façade</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsdiscovery-event-li><a href=/docs/navpatterns/patterns/discovery-event/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdiscovery-event><span>Discovery Event</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsdocument-li><a href=/docs/navpatterns/patterns/document/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsdocument><span>Document</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternseasy-update-of-setup-or-supplementary-information-li><a href=/docs/navpatterns/patterns/easy-update-of-setup-or-supplementary-information/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternseasy-update-of-setup-or-supplementary-information><span>Easy Update Of Setup Or Supplementary Information</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternserror-message-processing-li><a href=/docs/navpatterns/patterns/error-message-processing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternserror-message-processing><span>Error Message Processing</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsextending-the-role-center-headlines-li><a href=/docs/navpatterns/patterns/extending-the-role-center-headlines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsextending-the-role-center-headlines><span>Extending the Role Center Headlines</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsfeature-localization-for-data-structures-li><a href=/docs/navpatterns/patterns/feature-localization-for-data-structures/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsfeature-localization-for-data-structures><span>Feature Localization For Data Structures</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternshooks-li><a href=/docs/navpatterns/patterns/hooks/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternshooks><span>Hooks</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsimplementation-of-surrogate-keys-using-autoincrement-pattern-li><a href=/docs/navpatterns/patterns/implementation-of-surrogate-keys-using-autoincrement-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsimplementation-of-surrogate-keys-using-autoincrement-pattern><span>Surrogate keys using Autoincrement Pattern</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsinstructions-in-the-ui-li><a href=/docs/navpatterns/patterns/instructions-in-the-ui/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsinstructions-in-the-ui><span>Instructions in the UI</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsintegration-of-addresses-li><a href=/docs/navpatterns/patterns/integration-of-addresses/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsintegration-of-addresses><span>Integration of Addresses</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsjournal-error-processing-li><a href=/docs/navpatterns/patterns/journal-error-processing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsjournal-error-processing><span>Journal Error Processing</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsjournal-template-batch-line-li><a href=/docs/navpatterns/patterns/journal-template-batch-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsjournal-template-batch-line><span>Journal Template Batch Line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsmaster-data-li><a href=/docs/navpatterns/patterns/master-data/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmaster-data><span>Master Data</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsmulti-file-download-li><a href=/docs/navpatterns/patterns/multi-file-download/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmulti-file-download><span>Multi-file Download</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsmulti-page-list-li><a href=/docs/navpatterns/patterns/multi-page-list/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmulti-page-list><span>Multi-Page List</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsmultilanguage-application-data-li><a href=/docs/navpatterns/patterns/multilanguage-application-data/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsmultilanguage-application-data><span>Multilanguage Application Data</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternsnet-exception-handling-in-cal-li><a href=/docs/navpatterns/patterns/net-exception-handling-in-cal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsnet-exception-handling-in-cal><span>NET Exception Handling in CAL</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnet-exception-handling-in-caltryfunction-net-exception-handling-in-cal-li><a href=/docs/navpatterns/patterns/net-exception-handling-in-cal/tryfunction-net-exception-handling-in-cal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnet-exception-handling-in-caltryfunction-net-exception-handling-in-cal><span>TryFunction NET Exception Handling in CAL</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsno-series-li><a href=/docs/navpatterns/patterns/no-series/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsno-series><span>No Series</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternsnotifications-li><a href=/docs/navpatterns/patterns/notifications/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsnotifications><span>Notifications</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnotificationsin-context-notifications-li><a href=/docs/navpatterns/patterns/notifications/in-context-notifications/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnotificationsin-context-notifications><span>In-context Notifications</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsnotificationsnotification-lifecycle-management-pattern-li><a href=/docs/navpatterns/patterns/notifications/notification-lifecycle-management-pattern/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsnotificationsnotification-lifecycle-management-pattern><span>Notification Lifecycle Management Pattern</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsobserver-li><a href=/docs/navpatterns/patterns/observer/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsobserver><span>Observer</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsposting-routine-select-behavior-li><a href=/docs/navpatterns/patterns/posting-routine-select-behavior/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsposting-routine-select-behavior><span>Posting Routine - Select Behavior</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsproduct-name-li><a href=/docs/navpatterns/patterns/product-name/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsproduct-name><span>Product Name</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternsqueries-li><a href=/docs/navpatterns/patterns/queries/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternsqueries><span>Queries</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsqueriesselect-distinct-with-queries-li><a href=/docs/navpatterns/patterns/queries/select-distinct-with-queries/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesselect-distinct-with-queries><span>SELECT DISTINCT with Queries</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsqueriesuse-queries-to-detect-duplicate-records-li><a href=/docs/navpatterns/patterns/queries/use-queries-to-detect-duplicate-records/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesuse-queries-to-detect-duplicate-records><span>Use Queries to Detect Duplicate Records</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsqueriesuse-queries-to-replace-nested-loops-li><a href=/docs/navpatterns/patterns/queries/use-queries-to-replace-nested-loops/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsqueriesuse-queries-to-replace-nested-loops><span>Use Queries to Replace Nested Loops</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsread-once-initialization-and-validation-li><a href=/docs/navpatterns/patterns/read-once-initialization-and-validation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsread-once-initialization-and-validation><span>Read-once Initialization and Validation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsreleased-entity-li><a href=/docs/navpatterns/patterns/released-entity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsreleased-entity><span>Released Entity</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsreport-selection-li><a href=/docs/navpatterns/patterns/report-selection/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsreport-selection><span>Report Selection</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternssecurity-li><a href=/docs/navpatterns/patterns/security/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssecurity><span>Security</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity1-sensitive-data-encapsulation-li><a href=/docs/navpatterns/patterns/security/1-sensitive-data-encapsulation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity1-sensitive-data-encapsulation><span>Sensitive Data Encapsulation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity2-data-encryption-li><a href=/docs/navpatterns/patterns/security/2-data-encryption/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity2-data-encryption><span>Data Encryption</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity3-single-point-of-access-li><a href=/docs/navpatterns/patterns/security/3-single-point-of-access/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity3-single-point-of-access><span>Single Point of Access</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity4-masked-text-li><a href=/docs/navpatterns/patterns/security/4-masked-text/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity4-masked-text><span>Masked Text</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssecurity5-ssl-in-nav-li><a href=/docs/navpatterns/patterns/security/5-ssl-in-nav/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssecurity5-ssl-in-nav><span>SSL in NAV</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssetup-specificity-fallback-li><a href=/docs/navpatterns/patterns/setup-specificity-fallback/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssetup-specificity-fallback><span>Setup Specificity Fallback</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssilent-file-upload-and-download-li><a href=/docs/navpatterns/patterns/silent-file-upload-and-download/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssilent-file-upload-and-download><span>Silent File Upload and Download</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternssingleton-li><a href=/docs/navpatterns/patterns/singleton/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssingleton><span>Singleton</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-codeunit-li><a href=/docs/navpatterns/patterns/singleton/singleton-codeunit/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-codeunit><span>Singleton Codeunit</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatternspatternssingletonsingleton-table-li><a href=/docs/navpatterns/patterns/singleton/singleton-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatternspatternssingletonsingleton-table><span>Singleton Table</span></a><ul class="ul-5 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-tablecue-table-li><a href=/docs/navpatterns/patterns/singleton/singleton-table/cue-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-tablecue-table><span>Cue Table</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternssingletonsingleton-tablesetup-table-li><a href=/docs/navpatterns/patterns/singleton/singleton-table/setup-table/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternssingletonsingleton-tablesetup-table><span>Setup Table</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsstandard-journal-li><a href=/docs/navpatterns/patterns/standard-journal/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsstandard-journal><span>Standard Journal</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternstemporary-dataset-report-li><a href=/docs/navpatterns/patterns/temporary-dataset-report/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstemporary-dataset-report><span>Temporary Dataset Report</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternstotals-and-discounts-on-subpages-sales-and-purchases-li><a href=/docs/navpatterns/patterns/totals-and-discounts-on-subpages-sales-and-purchases/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstotals-and-discounts-on-subpages-sales-and-purchases><span>Totals and Discounts on Subpages Sales and Purchases</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternstransfer-custom-fields-li><a href=/docs/navpatterns/patterns/transfer-custom-fields/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternstransfer-custom-fields><span>Transfer Custom Fields</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternspatternsvariant-facade-li><a href=/docs/navpatterns/patterns/variant-facade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternspatternsvariant-facade><span>Variant Facade</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns2-anti-patterns-li><a href=/docs/navpatterns/2-anti-patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns2-anti-patterns><span>2. Anti-Patterns</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns2-anti-patternsnav-upgrade-li><a href=/docs/navpatterns/2-anti-patterns/nav-upgrade/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns2-anti-patternsnav-upgrade><span>Nav Upgrade</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns2-anti-patternsreusable-bugs-li><a href=/docs/navpatterns/2-anti-patterns/reusable-bugs/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns2-anti-patternsreusable-bugs><span>Reusable Bugs</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelines-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelines><span>3. CAL Coding Guidelines</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesign-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesdesign><span>Design</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignby-reference-parameters-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/by-reference-parameters/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignby-reference-parameters><span>By Reference Parameters</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignclass-coupling-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/class-coupling/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignclass-coupling><span>Class Coupling</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesigncyclomatic-complexity-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/cyclomatic-complexity/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesigncyclomatic-complexity><span>Cyclomatic Complexity</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignencapsulate-local-functionality-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/encapsulate-local-functionality/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignencapsulate-local-functionality><span>Encapsulate Local Functionality</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignfindset-findfirst-findlast-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/findset-findfirst-findlast/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignfindset-findfirst-findlast><span>FINDSET FINDFIRST FINDLAST</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesigninitialized-variables-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/initialized-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesigninitialized-variables><span>Initialized Variables</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignmaintainability-index-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/maintainability-index/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignmaintainability-index><span>Maintainability Index</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignparameter-placeholders-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/parameter-placeholders/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignparameter-placeholders><span>Parameter Placeholders</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignstatic-object-invocation-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/static-object-invocation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignstatic-object-invocation><span>Static Object Invocation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunreachable-code-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/unreachable-code/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunreachable-code><span>Unreachable Code</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-initialized-variables-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/unused-initialized-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-initialized-variables><span>Unused Initialized Variables</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-variables-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/unused-variables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignunused-variables><span>Unused Variables</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignvariable-capacity-mismatch-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/variable-capacity-mismatch/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignvariable-capacity-mismatch><span>Variable Capacity Mismatch</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesdesignwith-scope-name-collision-li><a href=/docs/navpatterns/3-cal-coding-guidelines/design/with-scope-name-collision/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesdesignwith-scope-name-collision><span>WITH Scope Name Collision</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternally-used-dot-net-types-li><a href=/docs/navpatterns/3-cal-coding-guidelines/internally-used-dot-net-types/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesinternally-used-dot-net-types><span>Internally used DotNet Types</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalization-li><a href=/docs/navpatterns/3-cal-coding-guidelines/internationalization/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalization><span>Internationalization</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalizationusing-calcdate-li><a href=/docs/navpatterns/3-cal-coding-guidelines/internationalization/using-calcdate/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesinternationalizationusing-calcdate><span>Using Calcdate</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizability-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelineslocalizability><span>Localizability</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilitycaptionml-for-system-tables-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/captionml-for-system-tables/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilitycaptionml-for-system-tables><span>CaptionML on System Pages</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityfieldcaption-and-tablecaption-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/fieldcaption-and-tablecaption/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityfieldcaption-and-tablecaption><span>FIELDCAPTION and TABLECAPTION</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityglobal-text-constants-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/global-text-constants/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityglobal-text-constants><span>Global Text Constants</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityuse-text-constants-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/use-text-constants/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityuse-text-constants><span>Use Text Constants</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityusing-optioncaptionml-li><a href=/docs/navpatterns/3-cal-coding-guidelines/localizability/using-optioncaptionml/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelineslocalizabilityusing-optioncaptionml><span>Using OptionCaptionML</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadability-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesreadability><span>Readability</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-as-an-afterword-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/begin-as-an-afterword/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-as-an-afterword><span>Begin as an 'After Word'</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-end-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/begin-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybegin-end><span>Begin-End - Compound Only</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybinary-operator-line-start-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/binary-operator-line-start/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitybinary-operator-line-start><span>Binary Operator to Start Line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityblank-lines-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/blank-lines/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityblank-lines><span>Blank Lines</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycase-actions-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/case-actions/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycase-actions><span>CASE Action</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycolon-usage-in-case-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/colon-usage-in-case/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycolon-usage-in-case><span>Colon usage in CASE</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-curly-brackets-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/comments-curly-brackets/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-curly-brackets><span>Comments inside Curly Brackets</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-spacing-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/comments-spacing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitycomments-spacing><span>Comment Spacing</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityend-else-pair-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/end-else-pair/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityend-else-pair><span>END ELSE Pair</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityindentation-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityindentation><span>Indentation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitykeyword-pairs-indentation-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/keyword-pairs-indentation/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitykeyword-pairs-indentation><span>Keyword Pairs - Indentation</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityline-start-keywords-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/line-start-keywords/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityline-start-keywords><span>Line Start Keywords</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitylonely-repeat-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/lonely-repeat/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitylonely-repeat><span>Lonely Repeat</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynamed-invocations-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/named-invocations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynamed-invocations><span>Named Invocations</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynested-withs-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/nested-withs/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitynested-withs><span>Nested WITHs</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityone-statement-per-line-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/one-statement-per-line/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityone-statement-per-line><span>One Statement Per Line</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityseparate-if-and-else-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/separate-if-and-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityseparate-if-and-else><span>Separate IF and ELSE</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-binary-operators-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-binary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-binary-operators><span>Spacing Binary Operators</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-brackets-and-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-brackets-and/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-brackets-and><span>Spacing Brackets and ::</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-unary-operators-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/spacing-unary-operators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityspacing-unary-operators><span>Spacing Unary Operators</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitysuggested-abbreviations-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/suggested-abbreviations/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitysuggested-abbreviations><span>Suggested Abbreviations</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytemporary-variable-naming-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/temporary-variable-naming/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytemporary-variable-naming><span>Temporary Variable Naming</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytextconst-suffixes-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/textconst-suffixes/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilitytextconst-suffixes><span>TextConst Suffixes</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunary-operator-line-end-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unary-operator-line-end/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunary-operator-line-end><span>Unary Operator Line End</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-compound-parenthesis-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-compound-parenthesis/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-compound-parenthesis><span>Unnecessary Compound Parenthesis</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-else-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-else/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-else><span>Unnecessary ELSE</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-function-parenthesis-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-function-parenthesis/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-function-parenthesis><span>Unnecessary Function Parenthesis</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-separators-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-separators/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-separators><span>Unnecessary Separators</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-truefalse-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/unnecessary-truefalse/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityunnecessary-truefalse><span>Unnecessary TRUE/FALSE</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariable-already-scoped-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/variable-already-scoped/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariable-already-scoped><span>Variable Already Scoped</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariable-naming-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/variable-naming/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariable-naming><span>Variable Naming</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariables-declarations-order-li><a href=/docs/navpatterns/3-cal-coding-guidelines/readability/variables-declarations-order/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesreadabilityvariables-declarations-order><span>Variables Declarations Order</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesux-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ux/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns3-cal-coding-guidelinesux><span>UX</span></a><ul class="ul-4 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesuxactions-images-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ux/actions-images/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesuxactions-images><span>Actions - Images</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesuxconfirm-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ux/confirm/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesuxconfirm><span>CONFIRM</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesuxfielderror-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ux/fielderror/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesuxfielderror><span>FIELDERROR</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns3-cal-coding-guidelinesuxmessage-and-error-li><a href=/docs/navpatterns/3-cal-coding-guidelines/ux/message-and-error/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns3-cal-coding-guidelinesuxmessage-and-error><span>MESSAGE and ERROR</span></a></li></ul></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docsnavpatterns4-get-involved-li><a href=/docs/navpatterns/4-get-involved/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docsnavpatterns4-get-involved><span>(OLD) Get Involved</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns4-get-involvedcode-of-conduct-li><a href=/docs/navpatterns/4-get-involved/code-of-conduct/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns4-get-involvedcode-of-conduct><span>Code of Conduct</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns4-get-involvedpatterns-authors-li><a href=/docs/navpatterns/4-get-involved/patterns-authors/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns4-get-involvedpatterns-authors><span>Patterns Authors</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatterns4-get-involvedtemplate-for-writing-nav-design-patterns-li><a href=/docs/navpatterns/4-get-involved/template-for-writing-nav-design-patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatterns4-get-involvedtemplate-for-writing-nav-design-patterns><span>Template for writing Nav Design Patterns</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docsnavpatternsrelated-links-li><a href=/docs/navpatterns/related-links/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docsnavpatternsrelated-links><span>Related Links</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child" id=m-docscontributing-li><a href=/docs/contributing/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docscontributing><span>Contributing</span></a><ul class="ul-2 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributingformattingtips-li><a href=/docs/contributing/formattingtips/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributingformattingtips><span>Formatting tips</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributingforkandpr-li><a href=/docs/contributing/forkandpr/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributingforkandpr><span>Guide to Fork & PR</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributingtheapprovalprocess-li><a href=/docs/contributing/theapprovalprocess/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributingtheapprovalprocess><span>Understanding the Approval Process</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docscontributinginstallhugo-li><a href=/docs/contributing/installhugo/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docscontributinginstallhugo><span>Install Hugo</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributinginstallhugotheshortcut-li><a href=/docs/contributing/installhugo/theshortcut/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributinginstallhugotheshortcut><span>Devcontainer with VS Code</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributinginstallhugomanuallyonwindows11-li><a href=/docs/contributing/installhugo/manuallyonwindows11/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributinginstallhugomanuallyonwindows11><span>Manually on Windows 11</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributinginstallhugousingpowershellonwindows11-li><a href=/docs/contributing/installhugo/usingpowershellonwindows11/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributinginstallhugousingpowershellonwindows11><span>Powershell on Windows 11</span></a></li></ul></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section with-child collapse" id=m-docscontributingtemplates-li><a href=/docs/contributing/templates/ class="align-left pl-0 td-sidebar-link td-sidebar-link__section" id=m-docscontributingtemplates><span>Templates</span></a><ul class="ul-3 foldable"><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributingtemplatesbestpractice-li><a href=/docs/contributing/templates/bestpractice/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributingtemplatesbestpractice><span>Title Here</span></a></li><li class="td-sidebar-nav__section-title td-sidebar-nav__section without-child collapse" id=m-docscontributingtemplatespatterns-li><a href=/docs/contributing/templates/patterns/ class="align-left pl-0 td-sidebar-link td-sidebar-link__page" id=m-docscontributingtemplatespatterns><span>Title Here</span></a></li></ul></li></ul></li></ul></li></ul></nav></div></aside><aside class="d-none d-xl-block col-xl-2 td-sidebar-toc d-print-none"><div class="td-page-meta ml-2 pb-1 pt-2 mb-0"><a href=https://github.com/microsoft/alguidelines/tree/main/content/docs/patterns/generic-method-pattern/index.md class=td-page-meta--view target=_blank rel=noopener><i class="fa fa-file-alt fa-fw"></i> View page source</a>
<a href=https://github.com/microsoft/alguidelines/edit/main/content/docs/patterns/generic-method-pattern/index.md class=td-page-meta--edit target=_blank rel=noopener><i class="fa fa-edit fa-fw"></i> Edit this page</a>
<a href="https://github.com/microsoft/alguidelines/new/main/content/docs/patterns/generic-method-pattern/index.md?filename=change-me.md&value=---%0Atitle%3A+%22Long+Page+Title%22%0AlinkTitle%3A+%22Short+Nav+Title%22%0Aweight%3A+100%0Adescription%3A+%3E-%0A+++++Page+description+for+heading+and+indexes.%0A---%0A%0A%23%23+Heading%0A%0AEdit+this+template+to+create+your+new+page.%0A%0A%2A+Give+it+a+good+name%2C+ending+in+%60.md%60+-+e.g.+%60getting-started.md%60%0A%2A+Edit+the+%22front+matter%22+section+at+the+top+of+the+page+%28weight+controls+how+its+ordered+amongst+other+pages+in+the+same+directory%3B+lowest+number+first%29.%0A%2A+Add+a+good+commit+message+at+the+bottom+of+the+page+%28%3C80+characters%3B+use+the+extended+description+field+for+more+detail%29.%0A%2A+Create+a+new+branch+so+you+can+preview+your+new+file+and+request+a+review+via+Pull+Request.%0A" class=td-page-meta--child target=_blank rel=noopener><i class="fa fa-edit fa-fw"></i> Create child page</a>
<a href="https://github.com/microsoft/alguidelines/issues/new?title=Generic%20Method" class=td-page-meta--issue target=_blank rel=noopener><i class="fab fa-github fa-fw"></i> Create Issue</a>
<a href="https://github.com/microsoft/alguidelines/discussions?discussions_q=Generic%20Method" class=td-page-meta--issue target=_blank rel=noopener><i class="fab fa-github fa-fw"></i> Discussions</a>
<a href=https://github.com/microsoft/alguidelines/issues/new class=td-page-meta--project-issue target=_blank rel=noopener><i class="fas fa-tasks fa-fw"></i> Create project issue</a></div><div class=td-toc><nav id=TableOfContents><ul><li><a href=#abstract>Abstract</a></li><li><a href=#context>Context</a></li><li><a href=#problem>Problem</a></li><li><a href=#description>Description</a><ul><li><a href=#what-is-a-method>What is a method?</a></li><li><a href=#the-pattern>The Pattern</a></li></ul></li><li><a href=#usage>Usage</a></li><li><a href=#benefits>Benefits</a><ul><li><a href=#extensibility>Extensibility</a></li><li><a href=#decoupling>Decoupling</a></li><li><a href=#readability>Readability</a></li><li><a href=#testability>Testability</a></li><li><a href=#encapsulation>Encapsulation</a></li></ul></li><li><a href=#when-not-to-use>When not to use</a></li><li><a href=#snippets>Snippets</a></li><li><a href=#list-of-references>List of references</a></li></ul></nav></div><div class="taxonomy taxonomy-terms-cloud taxo-tags"><h5 class=taxonomy-title>Tag Cloud</h5><ul class=taxonomy-terms><li><a class=taxonomy-term href=https://alguidelines.dev/tags/al/ data-taxonomy-term=al><span class=taxonomy-label>AL</span><span class=taxonomy-count>34</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/api/ data-taxonomy-term=api><span class=taxonomy-label>API</span><span class=taxonomy-count>3</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/c/al/ data-taxonomy-term=c/al><span class=taxonomy-label>C/AL</span><span class=taxonomy-count>136</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/decoupling/ data-taxonomy-term=decoupling><span class=taxonomy-label>Decoupling</span><span class=taxonomy-count>2</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/extendability/ data-taxonomy-term=extendability><span class=taxonomy-label>Extendability</span><span class=taxonomy-count>3</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/interface/ data-taxonomy-term=interface><span class=taxonomy-label>Interface</span><span class=taxonomy-count>2</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/performance/ data-taxonomy-term=performance><span class=taxonomy-label>Performance</span><span class=taxonomy-count>2</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/readability/ data-taxonomy-term=readability><span class=taxonomy-label>Readability</span><span class=taxonomy-count>55</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/telemetry/ data-taxonomy-term=telemetry><span class=taxonomy-label>Telemetry</span><span class=taxonomy-count>1</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/testability/ data-taxonomy-term=testability><span class=taxonomy-label>Testability</span><span class=taxonomy-count>2</span></a></li></ul></div><div class="taxonomy taxonomy-terms-cloud taxo-categories"><h5 class=taxonomy-title>Categories</h5><ul class=taxonomy-terms><li><a class=taxonomy-term href=https://alguidelines.dev/categories/best-practice/ data-taxonomy-term=best-practice><span class=taxonomy-label>Best Practice</span><span class=taxonomy-count>88</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/categories/pattern/ data-taxonomy-term=pattern><span class=taxonomy-label>Pattern</span><span class=taxonomy-count>73</span></a></li></ul></div></aside><main class="col-12 col-md-9 col-xl-8 pl-md-5" role=main><nav aria-label=breadcrumb class=td-breadcrumbs><ol class=breadcrumb><li class=breadcrumb-item><a href=https://alguidelines.dev/docs/>Docs</a></li><li class=breadcrumb-item><a href=https://alguidelines.dev/docs/patterns/>Design Patterns</a></li><li class="breadcrumb-item active" aria-current=page><a href=https://alguidelines.dev/docs/patterns/generic-method-pattern/>Generic Method</a></li></ol></nav><div class=td-content><h1>Generic Method</h1><header class=article-meta><div class="taxonomy taxonomy-terms-article taxo-tags"><h5 class=taxonomy-title>Tags:</h5><ul class=taxonomy-terms><li><a class=taxonomy-term href=https://alguidelines.dev/tags/al/ data-taxonomy-term=al><span class=taxonomy-label>AL</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/decoupling/ data-taxonomy-term=decoupling><span class=taxonomy-label>Decoupling</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/readability/ data-taxonomy-term=readability><span class=taxonomy-label>Readability</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/testability/ data-taxonomy-term=testability><span class=taxonomy-label>Testability</span></a></li><li><a class=taxonomy-term href=https://alguidelines.dev/tags/extendability/ data-taxonomy-term=extendability><span class=taxonomy-label>Extendability</span></a></li></ul></div><div class="taxonomy taxonomy-terms-article taxo-categories"><h5 class=taxonomy-title>Categories:</h5><ul class=taxonomy-terms><li><a class=taxonomy-term href=https://alguidelines.dev/categories/pattern/ data-taxonomy-term=pattern><span class=taxonomy-label>Pattern</span></a></li></ul></div></header><p><em>Created by Gary Winter (Cloud Ready Software), Described by waldo (iFacto Business Solutions | Dynex)</em></p><h2 id=abstract>Abstract</h2><p>The goal of this pattern is to facilitate a lot of things in one single awesome way of writing code. If you apply this pattern as a general pattern, you&rsquo;ll implement:</p><ul><li>Extensibility</li><li>Decoupling</li><li>Readability</li><li>Testability</li><li>Encapsulation</li></ul><h2 id=context>Context</h2><p>Whenever you have to write an isolated piece of business logic, this pattern should be applicable.</p><h2 id=problem>Problem</h2><p>Usually, when you ask people where to place code, they all have their own opinion: on a table or page, or in some kind of codeunit library where lots of functions will be placed, or .. . In fact, does it matter? It sure does, because in many cases, the code simply isn&rsquo;t maintainable, let alone extendable or testable.</p><h2 id=description>Description</h2><p>What if we have some kind of &ldquo;standard way&rdquo; to always write our code. The <em>Generic Method Pattern</em> is kind of like what it says: a generic way to implement a method.</p><h3 id=what-is-a-method>What is a method?</h3><p>Well, a method is <em>a significant piece of business logic</em> - maybe best explained by some examples:</p><ul><li>Posting a document</li><li>Any button on a page that executes business logic</li><li>a batch run to send emails</li><li>&mldr;</li></ul><p>In a way, except &ldquo;data validation&rdquo;, most of the things we write in our daily life, are methods.</p><h3 id=the-pattern>The Pattern</h3><p><strong>One method, one codeunit</strong>
The idea is to put the code in one <em>encapsulated</em> codeunit with the purpose to have all the code in that one codeunit function for that one method. This way, the codeunit will stay relatively small and readable.</p><p>Let me start by showing an example, so you can refer to this complete example during the rest of the article:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>53100</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;WLD BlockCustomer Meth&#34;<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>internal</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>not</span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#ce5c00;font-weight:700>) </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>OnBeforeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DoBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>OnAfterBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>AcknowledgeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>DoBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span>Blocked<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span>Blocked<span style=color:#000;font-weight:700>::</span>All<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span><span style=color:#204a87;font-weight:700>Modify</span><span style=color:#ce5c00;font-weight:700>(</span>true<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmManagement<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;Confirm Management&#34;<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmQst<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Label</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>&#39;Are you sure?&#39;</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>true<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#ce5c00;font-weight:700>(</span>DefaultAnswer<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#ce5c00;font-weight:700>(</span>ConfirmManagement<span style=color:#ce5c00;font-weight:700>.</span>GetResponseOrDefault<span style=color:#ce5c00;font-weight:700>(</span>ConfirmQst<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#ce5c00;font-weight:700>))</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>AcknowledgeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>AcknowledgeMsg<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Label</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>&#39;You successfully executed &#34;BlockCustomer&#34;&#39;</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>not</span><span style=color:#f8f8f8;text-decoration:underline> </span>GuiAllowed<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>or</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Message<span style=color:#ce5c00;font-weight:700>(</span>AcknowledgeMsg<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>[IntegrationEvent<span style=color:#ce5c00;font-weight:700>(</span>false<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>false<span style=color:#ce5c00;font-weight:700>)</span>]<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>OnBeforeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>[IntegrationEvent<span style=color:#ce5c00;font-weight:700>(</span>false<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>false<span style=color:#ce5c00;font-weight:700>)</span>]<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>OnAfterBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>}<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>Within that codeunit, the pattern is always the same:</p><ul><li>One public (internal) procedure</li><li>The rest is always local</li></ul><p>So, from outside the codeunit, there is only one clear entrypoint: that one (public) internal function with its parameters.</p><p>The <strong>pattern</strong> within the codeunit exists of a few layers:</p><ul><li>The UI layer</li><li>The Event layer</li><li>The method layer</li></ul><p><em>The UI layer</em>
The UI layer takes care of the UI, obviously. What is important in this case, is that you always make sure that there is a &ldquo;HideDialog&rdquo; parameter that the business logic can use to still decide whether to use the dialog or not.</p><p>These are the UI Layer parts, where you see the public function gets the HideDialog, and passes it to the UI-related procedures, where the business logic for showing the UI takes place. Also, the default answer of the confirmation is handled there as well (what if the business logic calls this method with HideDialog to &ldquo;true&rdquo;).</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>53100</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;WLD BlockCustomer Meth&#34;<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>internal</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>not</span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#ce5c00;font-weight:700>) </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>AcknowledgeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700>
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmManagement<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;Confirm Management&#34;<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>ConfirmQst<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Label</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>&#39;Are you sure?&#39;</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>true<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#ce5c00;font-weight:700>(</span>DefaultAnswer<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#ce5c00;font-weight:700>(</span>ConfirmManagement<span style=color:#ce5c00;font-weight:700>.</span>GetResponseOrDefault<span style=color:#ce5c00;font-weight:700>(</span>ConfirmQst<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>DefaultAnswer<span style=color:#ce5c00;font-weight:700>))</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>AcknowledgeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>AcknowledgeMsg<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Label</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#4e9a06>&#39;You successfully executed &#34;BlockCustomer&#34;&#39;</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>not</span><span style=color:#f8f8f8;text-decoration:underline> </span>GuiAllowed<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>or</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Message<span style=color:#ce5c00;font-weight:700>(</span>AcknowledgeMsg<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700></span>}<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p><em>The Event layer</em>
This layer is going to add flexibility to any app that has a dependency on this app. By default, the pattern always foresees an <code>OnBefore</code> and an <code>OnAfter</code> event.</p><p>This is the relevant code for the event layer:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>53100</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;WLD BlockCustomer Meth&#34;<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>internal</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>OnBeforeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>OnAfterBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>[IntegrationEvent<span style=color:#ce5c00;font-weight:700>(</span>false<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>false<span style=color:#ce5c00;font-weight:700>)</span>]<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>OnBeforeBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>[IntegrationEvent<span style=color:#ce5c00;font-weight:700>(</span>false<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>false<span style=color:#ce5c00;font-weight:700>)</span>]<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>OnAfterBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>}<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p><em>The method layer</em>
The last layer is obviously where the business logic will be written.</p><p>The relevant part is:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>53100</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;WLD BlockCustomer Meth&#34;<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>internal</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span>DoBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Cust<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>local</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>DoBlockCustomer<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Record</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>if</span><span style=color:#f8f8f8;text-decoration:underline> </span>IsHandled<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>then</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>exit</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span>Blocked<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span>Blocked<span style=color:#000;font-weight:700>::</span>All<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>Cust<span style=color:#ce5c00;font-weight:700>.</span><span style=color:#204a87;font-weight:700>Modify</span><span style=color:#ce5c00;font-weight:700>(</span>true<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span><span style=color:#ce5c00;font-weight:700>...
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700></span>}<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>Usually indicated with a &ldquo;do&rdquo;-function, the business logic takes place in that procedure. Obviously, when you have a decent amount of code, it&rsquo;s recommended that you make it readable by applying all the Best Practices in terms of readability in the codeunit. Though, a few pointers here:</p><ul><li>keep the <a href=https://en.wikipedia.org/wiki/Cyclomatic_complexity>cyclomatic complexity</a> low<ul><li>one line (function call) after an IF-clause</li><li>one line (function call) after a repeat</li></ul></li><li>readable function calls</li><li>&mldr;</li></ul><p><strong>Call out to the method from a table</strong></p><p>Now, there is a reason that the one global procedure in the method-codeunit is <code>internal</code>. We shouldn&rsquo;t be calling this procedure directly. We should be calling it through it&rsquo;s &ldquo;class&rdquo; (usually, a table can be seen as a class). That means, we would have to create a public (not internal) procedure on table-level, which can be used in the business logic.</p><p>In our example above, this could be that table extension:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>tableextension</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#0000cf;font-weight:700>53100</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;Customer Ext BASE&#34;<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>extends</span><span style=color:#f8f8f8;text-decoration:underline> </span>Customer<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>{<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>HideDialog<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Boolean</span><span style=color:#ce5c00;font-weight:700>)
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>var</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>WLDBlockCustomerMeth<span style=color:#000;font-weight:700>:</span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#f8f8f8;text-decoration:underline> </span>&#34;WLD BlockCustomer Meth&#34;<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>WLDBlockCustomerMeth<span style=color:#ce5c00;font-weight:700>.</span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>Rec<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>HideDialog<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>procedure</span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>()
</span></span></span><span style=display:flex><span><span style=color:#ce5c00;font-weight:700> </span><span style=color:#204a87;font-weight:700>begin</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>BlockCustomer<span style=color:#ce5c00;font-weight:700>(</span>false<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>end</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>}<span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>This practice improves readability. In fact, by doing this, you just extended the suggestions-list in VSCode (IntelliSense) indicating a new method that your class can do. This is very convenient for the developer that might need your new method.</p><p><em>Note - it could very well be that there simply isn&rsquo;t any table that can act as a class for our method. In that case, you could use a codeunit as well.</em></p><p><strong>Naming Conventions</strong></p><p>You might have noticed that the naming of our method is quite strict:</p><ul><li>codeunit name: <code>WLD BlockCustomer Meth</code></li><li>internal proc: <code>BlockCustomer</code></li><li>do-procedure: <code>DoBlockCustomer</code></li></ul><p>It is important to align these namings. It indicates that the codeunit only does one thing (remember: encapsulation), and it improves searchability from outside the codeunit (for example when you&rsquo;re searching symbols or something).</p><h2 id=usage>Usage</h2><p>Currently, there is no usage of this pattern in the BaseApp.</p><p>The pattern has a main advantage in an ISV product, just because of the decoupling and extensibility. Although, I have seen many occasions where parts of the pattern was useful on PTE&rsquo;s as well. You simply never know if ever at the customer site, there is going to be another partner that needs to create its own PTE, and has to depend on yours. So I&rsquo;d say, this pattern is everywhere applicable, no matter the type of the app.</p><h2 id=benefits>Benefits</h2><p>As I said, it will facilitate a lot of advantages. Let&rsquo;s explain a bit more in depth:</p><h3 id=extensibility>Extensibility</h3><p>Thanks to the <em>event layer</em>, by applying this pattern for all methods, we will automatically have the bare minimum of events that we need to hook into a method: the <code>OnBefore-</code> and the <code>OnAfter</code>. Of course it would make sense to even add more events to the method when appropriate (eg, when you&rsquo;re inserting a record in a table, it might be interesting to also raise an event just before you call the insert).</p><h3 id=decoupling>Decoupling</h3><p>Thanks to these same events, and the fact the pattern foresees a handler as well, we are able to &ldquo;decouple&rdquo; our method as well. What do I mean with that? Well, we can simply subscribe to the <code>OnBefore</code>event, and set <code>IsHandled</code> to <code>true</code>. This means it will never execute the do-procedure, which means, the original procedure/method/business logic is &ldquo;decoupled&rdquo;.</p><p>We can use this obviously for implementing our own method (a new way to accomplish this method), or to disable the method by simply subscribing to it, and only providing the <code>IsHandled := true</code> in our subscriber. However, there are many more usages where we can use this for.</p><p>Maybe one more example:
if you would apply this pattern to your product, at the customer, you&rsquo;ll be able to hotfix your methods simply by decoupling them and fixing the method instead of waiting for a hotfix from the hotfix-departement.</p><p>This gives a lot of flexibility.</p><h3 id=readability>Readability</h3><p>When we talk about readability, we actually talk about the part where we expose our method on the class. The rule is: never call the codeunit, but only from one place: from its &ldquo;class&rdquo; - or in BC terms: its table (or codeunit).</p><p>In terms of readability, that means that intellisense comes into play. In stead of:</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#ce5c00;font-weight:700>.</span>Run<span style=color:#ce5c00;font-weight:700>(</span><span style=color:#204a87;font-weight:700>Codeunit</span><span style=color:#000;font-weight:700>::</span>&#34;Sales-Post&#34;<span style=color:#000;font-weight:700>,</span><span style=color:#f8f8f8;text-decoration:underline> </span>SalesHeader<span style=color:#ce5c00;font-weight:700>)</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>you simply get</p><div class=highlight><pre tabindex=0 style=background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-AL data-lang=AL><span style=display:flex><span>SalesHeader<span style=color:#ce5c00;font-weight:700>.</span>Post<span style=color:#ce5c00;font-weight:700>()</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>THAT is readable. The previous is not! That is just something we got used to.</p><h3 id=testability>Testability</h3><p>There are two things in terms of testability where this pattern helps a lot.</p><p><em>Unit testing</em>
You can interpret &ldquo;unit testing&rdquo; very broadly. But just imagine: when you&rsquo;re building your software entirely out of &ldquo;methods&rdquo; - which means: when you&rsquo;d build your software entirely with this &ldquo;Generic Method Pattern&rdquo;. Now, the list of methods, are all the units that you need to test: if you test all your methods, you kind of like test the majority of your software, right?</p><p>So you could simply set up rules in your company like: EVERY method needs a test-codeunit. And even more: since every method only has one global function - it&rsquo;s pretty easy to know the context, and all the flavors to test your method.</p><p>The pattern describes the tests that needs to be written.</p><p><em>Disabling methods</em>
Coming back to the &ldquo;decoupling&rdquo; part - in tests, you actually might need it more than you realize. Just imagine: you want to test method 1, but method 2 comes in the way by interfering with configurations that you need to do, or UI that is popping up, while it could be completely pointless.<br>Solution: simply - within your test-codeunit - subscribe (with a manual subscriber) to method 2, set <code>IsHandled</code> to <code>false</code> - done!</p><h3 id=encapsulation>Encapsulation</h3><p>Don&rsquo;t underestimate the power of the encapsulation part of this pattern. One of the first questions that people ask themselves when reading into this pattern is: &ldquo;<em>isn&rsquo;t it going to consume all my codeunit-id&rsquo;s</em>&rdquo; or &ldquo;<em>so many codeunits, that can&rsquo;t be readable, right?</em>&rdquo;.<br>The fact that the functionality of one method is encapsulated in one codeunit is very powerful. You&rsquo;ll avoid <a href=https://sourcemaking.com/antipatterns/boat-anchor>Boat anchors</a> simply because because, thanks to the encapsulation, there is a limited amount of code in the codeunit, of course.<br>And because of that, it so much more maintainable, upgradable, readable, .. . Only advantages.</p><h2 id=when-not-to-use>When not to use</h2><p>However, there are occasions where you can&rsquo;t use this pattern. Just imagine if you&rsquo;d put EVERY SINGE LINE of code in a method, including the simple validation code on a table, or library-functions like in helper codeunits. That would obviously not make any sense.</p><p>So all I can say is: use your common sense.</p><p>One example: set the bar at &ldquo;validation code&rdquo;: any code that is solely there to facilitate data integrity doesn&rsquo;t belong in method codeunits.</p><p>Another tip might be: don&rsquo;t let the amount of codelines trick you in deciding to <em>not</em> use this pattern: when it&rsquo;s a method, it&rsquo;s a method. When it makes sense to be able to extend, decouple, .. then this pattern can help.</p><h2 id=snippets>Snippets</h2><p><a href="https://marketplace.visualstudio.com/items?itemName=waldo.crs-al-language-extension">waldo&rsquo;s CRS AL Language Extension</a> contains snippets that help you in setting up the boiler plate code in a matter of seconds.</p><p>The snippets are:</p><ul><li><code>tcodeunitMethodWithoutUIwaldo</code></li><li><code>tcodeunitMethodWithUIwaldo</code></li></ul><h2 id=list-of-references>List of references</h2><p>There have been a number of occasions where people have been sharing this pattern. Here is one:</p><div style=position:relative;padding-bottom:56.25%;height:0;overflow:hidden><iframe src=https://www.youtube.com/embed/CWpaD9RUa6U style=position:absolute;top:0;left:0;width:100%;height:100%;border:0 allowfullscreen title="YouTube Video"></iframe></div><div class="text-muted mt-5 pt-3 border-top">Last modified February 24, 2022: <a href=https://github.com/microsoft/alguidelines/commit/fb17dc9640ceef53d1f3b8bbf9e9791ef92fabbc>Removed Discussion Links. Using new Theme solution. (fb17dc96)</a>
by Henrik Helgesen</div></div></main></div></div><footer class="bg-dark py-5 row d-print-none"><div class="container-fluid mx-sm-5"><div class=row><div class="col-6 col-sm-4 text-xs-center order-sm-2"><ul class="list-inline mb-0"><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title=GitHub aria-label=GitHub><a class=text-white target=_blank rel=noopener href=https://github.com/microsoft/alguidelines aria-label=GitHub><i class="fab fa-github"></i></a></li><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title=Twitter aria-label=Twitter><a class=text-white target=_blank rel=noopener href="https://twitter.com/search?q=%23bcalhelp" aria-label=Twitter><i class="fab fa-twitter"></i></a></li><li class="list-inline-item mx-2 h3" data-toggle=tooltip data-placement=top title=Discord aria-label=Discord><a class=text-white target=_blank rel=noopener href=https://discord.gg/4wbfNv3 aria-label=Discord><i class="fab fa-discord"></i></a></li></ul></div><div class="col-6 col-sm-4 text-right text-xs-center order-sm-3"></div><div class="col-12 col-sm-4 text-center py-2 order-sm-2"><small class=text-white>&copy; 2022 alguidelines.dev Project All Rights Reserved</small></div></div></div></footer></div><script src=https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js integrity=sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN crossorigin=anonymous></script>
<script src=https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/js/bootstrap.min.js integrity="sha512-UR25UO94eTnCVwjbXozyeVd6ZqpaAE9naiEUBK/A+QDbfSTQFhPGj5lOR6d8tsgbBk84Ggb5A3EkjsOgPRPcKA==" crossorigin=anonymous></script>
<script src=https://cdn.jsdelivr.net/npm/mermaid@8.13.4/dist/mermaid.min.js integrity="sha512-JERecFUBbsm75UpkVheAuDOE8NdHjQBrPACfEQYPwvPG+fjgCpHAz1Jw2ci9EXmd3DdfiWth3O3CQvcfEg8gsA==" crossorigin=anonymous></script>
<script src=/js/tabpane-persist.js></script>
<script src=/js/main.min.9021b54d402798091af52a2fc8b747e6c5076e5f1323b276dc25e0774fb46c2d.js integrity="sha256-kCG1TUAnmAka9SovyLdH5sUHbl8TI7J23CXgd0+0bC0=" crossorigin=anonymous></script></body></html>
Reference in a new issue View git blame Copy permalink