Events associated with Combo Box controls

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Help / Developing an application or website / Controls, windows and pages / Controls: Available types / Combo Box control

Default events
Events supported by WINDEV and WINDEV Mobile
Events supported in WEBDEV
Optional events
Optional Combo Box control events: opening and closing Combo Box controls

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

The Combo Box control

Events associated with Combo Box controls

Default events

Events supported by WINDEV and WINDEV Mobile

The following events appear by default in the WINDEV and WINDEV Mobile code editor:

Event	Runtime condition

Initializing	Executed when the window is opened. () Special case: file combo automatically filled*: When this code is executed, the Combo Box control is not populated yet. To force the control to be populated in this event, use: the ListDisplay function, or Combo Box control file properties: BrowsedFile, BrowsedItem or Filter.
End of initialization	Code present only in automatically populated Combo Box controls based on a data file: Executed once the Combo Box control has been populated. This code allows you to select, add or modify an element in the control.
Entry	Executed when the control gains focus
Exit	Executed when a field is changed (TAB key, changing a field with the mouse, etc.).
With each modification	Code present only in editable Combo Box controls: Executed when the user enters data in an editable Combo Box control.
Selecting a row	Executed when the user selects an element in the row or modifies the selected element.

(*) By default, the "Initialization" event of each control is executed according to the order in which the controls were created in the window. To modify this runtime order:

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

Events supported in WEBDEV

The following events appear by default in the WEBDEV code editor:

Event	Runtime condition

Initialization (Server code)	Executed when the page is opened. Special case: Combo Box control file automatically filled: When this code is executed, the Combo Box control is not populated yet. To force the control to be populated in this event, use: the ListDisplay function, or Combo Box control file properties: BrowsedFile, BrowsedItem or Filter.
End of initialization (Server code)	Code present only in automatically populated Combo Box controls based on a data file: Executed once the control has been populated. This code allows you to select, add or modify an element in the control.
Enter (Browser code)	Executed when the control gains focus.
Leave after changes (Browser code)	Executed when moving from one control to another (selecting another control with the mouse, etc.) after the content of the control was modified (selecting an element, for example).
Whenever modifying (Server code)	Executed when the user performs a selection.
Exit (Browser code)	Executed when moving from one control to another (selecting another control with the mouse, etc.).

Remark: In a static page, only browser codes are available.

Optional events

Several optional events can be added. To add an optional event:

Select the desired control.
Display the code window of this control (F2 key).
Click the link "Add other events to xxx" at the bottom of the window code, after the last event.
All the optional events available for the control are displayed.
Check the optional event to add and validate.
Note: Several optional events can be selected.
The selected optional event is automatically added to the events managed by the control.

To disable an optional event, simply perform the same operations to display the list of optional events. Then simply uncheck the optional events to delete.
Note: If the deactivated code contains WLanguage code, this code is automatically deleted..

For example, you can use the following events:

the mouse hover over the control,
left mouse button down, up, double click,
right mouse button down, up, double click,
mouse wheel, etc.

Optional Combo Box control events: opening and closing Combo Box controls

Two optional events are associated with Combo Box controls:

Event	Runtime condition

Open the drop-down list	Executed when the user displays the content of the Combo Box control. Populates a Combo Box control dynamically when it is opened, for example.
Close the drop-down list	Executed when the user closes the drop-down list of the Combo Box control. Positions the cursor on another control when the Combo Box control is validated.
New value	Executed when the user validates the new value entered in the input field of the Combo Box control. Checks the value entered, or adds it to a data file, etc.