Help / WLanguage / WLanguage functions / Controls, pages and windows / Looper functions
  • Use conditions
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WindowsLinuxPHPWEBDEV - Browser code
AndroidAndroid Widget iPhone/iPadIOS WidgetApple WatchMac CatalystUniversal Windows 10 App
Stored procedures
On a given row of a Looper control:
  • collapses a break (if it is expanded),
  • expands a break (if it is collapsed).
// Expands on user click
<Result> = LooperCollapseExpand(<Looper control> [, <Row number> [, <Break name>]])
<Result>: Integer constant
State of the row before LooperCollapseExpand is called:
taCollapseCollapsed row.
taErrorNo row found.
taExpandExpanded row.
<Looper control>: Control name
Name of the Looper control to be used.
If this parameter is an empty string (""), the current Looper control is used.
<Row number>: Optional integer
Number of the row to collapse or expand.
If this parameter is not specified, the current row is used.
<Break name>: Optional character string
Name of the break to modify. This parameter must be specified in case of nested breaks. It is used to define the break that will be handled. By default, no break is expanded or collapsed if the breaks are nested.

Use conditions

LooperCollapseExpand can be used on:
  • a Looper control based on a data file,
  • a Looper control populated programmatically.
WEBDEV - Browser code This function is not available for Linear Looper controls. This function is available for Looper controls in browser mode only.
WEBDEV - Server codePHP This function is available for Looper controls in Ajax mode, Looper controls in classic mode and Linear Looper controls.
Business / UI classification: UI Code
Component: wd280obj.dll
Minimum version required
  • Version 17
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Last update: 06/22/2023

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