| bc-version |
domain |
keywords |
technologies |
countries |
application-area |
|
|
ui |
| fieldgroup |
| dropdown |
| addlast |
| lookup-page |
| visible |
| tableextension |
| pageextension |
|
|
|
|
A DropDown field remains hidden when its lookup-page control is hidden
Description
A tableextension can append a field to the DropDown field group with addlast, but the client still omits that field when its control on the underlying lookup page has Visible = false. Changing only the table field group therefore compiles while producing no visible UI change. The field-group name is case-sensitive and must be written as DropDown.
Best Practice
When adding a hidden field to a DropDown field group, also extend the page used for the lookup and make that field control visible. Verify the actual lookup page rather than assuming the table definition alone controls the drop-down.
See sample: dropdown-fieldgroup-respects-lookup-page-visibility.good.al.
Anti Pattern
Adding the field with addlast(DropDown; ...) while leaving its lookup-page control hidden, then expecting the field to appear in the drop-down.
See sample: dropdown-fieldgroup-respects-lookup-page-visibility.bad.al.
Reference
Add a new FieldGroup to an existing table
