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<!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 0.107.0"><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>Posting Routine - Select Behavior | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="By waldo
<!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 0.110.0"><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>Posting Routine - Select Behavior | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="By waldo
Abstract
Send information (parameters) to a processing framework/routine so that it knows what to do, how to behave.
Description
@ -23,7 +23,7 @@ Description For a processing routine to behave correctly, it needs sometimes inp
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline></span>Ship<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>Selection<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IN</span><span style=color:#f8f8f8;text-decoration:underline> </span>[<span style=color:#0000cf;font-weight:700>1</span><span style=color:#000;font-weight:700>,</span><span style=color:#0000cf;font-weight:700>3</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>Invoice<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#ce5c00;font-weight:700>:=</span><span style=color:#f8f8f8;text-decoration:underline> </span>Selection<span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>IN</span><span style=color:#f8f8f8;text-decoration:underline> </span>[<span style=color:#0000cf;font-weight:700>2</span><span style=color:#000;font-weight:700>,</span><span style=color:#0000cf;font-weight:700>3</span>]<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>The processing codeunit is being called after these options were set.</p><h2 id=nav-usages>NAV Usages</h2><p>This is also being used in the Purchase Post.</p><p>However, the Service Post works different. In Short:</p><ul><li>There were no parameter fields added to the processing table (Service Header)</li><li>The processing routine isn&rsquo;t called by CODEUNIT.RUN, but a function in a declared codeunit, where you pass the Invoice and Ship parameter separately.</li></ul><h2 id=ideas-for-improvement>Ideas for improvement</h2><p>Implement it consequently. There is (in my knowledge) no reason to do Service Posting differently from Sales and Purchase.</p><p>Furthermore, one might argue if adding fields to a table (which also means adding fields to the SQL Table) is the right solution to pass parameters to processing methods.</p><p>On the other hand, as we are handling tables as being &ldquo;classes&rdquo; in many cases, it does make sense to add &ldquo;properties&rdquo; to those &ldquo;classes&rdquo; to change the behavior of the method (SalesHeader.Post).</p><h2 id=related-topics>Related Topics</h2><p>I would like to add a pattern like &ldquo;Using Argument tables&rdquo; (as a sub-pattern for the facade-pattern). It somewhat is related to this way of handling parameters: using tablefields to pass a flexible amount of parameters to functions/codeunits.</p><div style=position:relative;padding-bottom:56.25%;height:0;overflow:hidden><iframe src=https://www.youtube.com/embed/SxywT2XSpcI 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/5ee0436639455a35835c5ce88241d3fad662ee06>Added tags & categories + cleanup (5ee04366)</a>
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