Events associated with Combo Box controls

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English

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
Optional events
Optional events of a Combo Box control: 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: automatically filled browsing Combo Box*: 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, the properties for manipulating Combo Box controls based on a data file: 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 moving from one control to another (TAB key, selecting another control with the mouse, etc.)
Whenever modiying	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 change this order of execution:

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.

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.
Remark: You can select several optional events.
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.
Remark: If the disabled 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 events of a Combo Box control: 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.