Events supported by WINDEV and WINDEV Mobile

Event	Runtime condition
Initializing	Run when opening the window.* Special case: browsing Looper control filled automatically: When this code is run, the Looper control is not filled yet. To force the Looper control to be filled in this code, use: the LooperDisplay function the Table control based on a data file management properties: BrowsedFile, BrowsedItem or Filter properties. You can also filter records with HFilter.
End of initialization	Event only for browsing Looper controls filled automatically: Run once the Looper control has been filled. This code can be used to add or modify an element of the Looper control.
Entry in the Looper control	Run when one of the Looper controls gains focus.
Exit from the Looper control	Run when moving from one control to another (TAB key, selecting another control with the mouse, etc.).
Whenever a Looper control is modified	Run when the user modifies the content of the Looper control. This event is not run.
Entry in edit in a row of the Looper control	Run when the user selects a row to enter data. This event is not run.
Exit from a row of the Looper control	Run when moving from one row or control to another (TAB key, selecting another control with the mouse, etc.). This event is not run.
Displaying a row of the Looper control	Run when a new row must be displayed in the Looper control: redisplaying the Looper control, etc. This event is not run. This event is not available in browsing Looper controls for performance reasons.
Selecting a row of the Looper control	Run when the user selects a row (without input).
Versions 20 and later Pull to refresh New in version 20 Pull to refresh Pull to refresh	This event is automatically added when the "Pull to refresh" option is enabled ("Details" tab in the Looper control description window). This event is run when a refresh gesture is detected on the Looper control. Once this event has been run, the refresh bar will be automatically hidden except if LooperRefreshVisible is called. For more details, see Pull to Refresh on Table and Looper controls (Android/iOS).
Versions 18 and later Before automatically deleting a row by swipe New in version 18 Before automatically deleting a row by swipe Before automatically deleting a row by swipe	Event only available if an automatic deletion on row swipe has been defined ("Details" tab of the control description) Run before the automatic deletion of record displayed in the row. This event is used to run different tests for example. If this event returns False the deletion is not performed. For more details, see Moves and gestures in a Looper control.
Versions 18 and later After automatic deletion of a row by swipe New in version 18 After automatic deletion of a row by swipe After automatic deletion of a row by swipe	Event only available if an automatic deletion on row swipe has been defined ("Details" tab of the control description) Run after the effective deletion of the record. This event is used, for example, to re-display the data. For more details, see Moves and gestures in a Looper control.
Versions 18 and later Row swipe New in version 18 Row swipe Row swipe	Event only available if an action on row swipe has been defined ("Details" tab of the control description) Case of automatic deletion: This event is executed BEFORE the event "Before deleting a row". If this event returns False, the event "Before automatically deleting a row" is not run and the record is not deleted. Case of action through programming: This event is run when the user swipes the row. This event allows you to program the desired action. For more details, see Moves and gestures in a Looper control.
Versions 18 and later Beginning of source Drag/Drop New in version 18 Beginning of source Drag/Drop Beginning of source Drag/Drop	Run at the beginning of Drag/Drop for the element. This event is used to run different tests for example. If this event returns False the movement is not performed.
Versions 18 and later Drop in target Drag/Drop New in version 18 Drop in target Drag/Drop Drop in target Drag/Drop	Run when the user finishes the element Drag/Drop. If this event returns False the movement is not performed.
Filtering records	Optional code for browsing Looper controls filled automatically: Run just before displaying a row. This event filters the records displayed in the Looper control. This event is detailed at the end of this page. This event is not available.
Versions 27 and later Scrolling events (optional events) New in version 27 Scrolling events (optional events) Scrolling events (optional events)	These events simplify the management of the control vertical elevator movement. The available events are: Start of scrolling: Executed at the beginning of the vertical scroll of the control. While scrolling: Executed when scrolling the vertical elevator of the control. End of scrolling: Executed at the end of the control vertical scrollbar. Remark: The ScrollbarPosition function allows to know the position of the elevator.

1. On the "Window" tab, in the "Order" group, click "Initialization".
2. In the window that appears, use the arrows on the right to change the order in which the controls are initialized.

Events managed by WEBDEV

• when initializing the Looper control.
• whenever a row is displayed in the Looper control.

• True to specify that the record matches to the filter and that it must be displayed.
• False to specify that the record does not match the filter and that it must not be displayed.
• Cancel to stop reading the data source of the Looper control (very rare case).