ListDeleteAll (Function)

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Deletion on the browser
Miscellaneous

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ListDeleteAll (Function)

In french: ListeSupprimeTout

Deletes all the elements from a memory List Box (or ListView) control or from a memory Combo Box control.

Remark: ListDeleteAll can be used on the single-selection and multiselection List Box controls.

Caution: The List Box (or Combo Box) control will be cleared on the page displayed in the browser only. For more details, see Remarks.

Versions 15 and later

This function is now available for Android applications.

New in version 15

This function is now available for Android applications.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

// Delete all elements from the "LIST_CustomerList" control
ListDeleteAll(LIST_CustomerList)

Syntax

ListDeleteAll(<List Box control>)

<List Box control>: Control name

Name of List Box (or Combo Box) control to use. If this parameter corresponds to an empty string (""), all the elements of the List Box control (or Combo Box) to which the current event belongs are deleted.
The name of the List Box (or Combo Box) control to use must be specified.

Remarks

Deletion on the browser

When deleting elements from a List Box (or Combo Box) control in browser code, these elements are deleted on the page displayed in the browser only. In order for these elements to be deleted from the server, ListDeleteAll must be run on the server.

Calling ListDeleteAll in browser code is useful when using AJAX technology, in "Programmed AJAX" mode (via AJAXExecute or AJAXExecuteAsynchronous).

Reminder: In "Automatic and immediate AJAX" mode, all you have to do is switch the server process containing ListDeleteAll to automatic AJAX mode. That's it! No additional programming is required. For more details, see AJAX.

Miscellaneous

To delete all the rows from a Table control, use TableDeleteAll.
ListDeleteAll can be used on a "Combo Box" table column.
For the editable Combo Box controls, the input area is cleared.

Component: wd260obj.dll