When-List-Changed Trigger
Description
Fires when an end user selects a different element in a list item or de-selects the currently selected element. In addition, if a When-List-Changed trigger is attached to a combo box style list item, it fires each time the end user enters or modifies entered text.
Definition Level form, block, or item
Legal Commands
SELECT statements, unrestricted Built-ins, restricted Built-ins
Enter Query Mode yes
Usage Notes
- Use a When-List-Changed trigger to initiate an action when the value of
the list is changed directly by the end user. The When-List-Changed trigger
is not fired if the value of the list is changed programmatically such as
by using the DUPLICATE_ITEM Built-in,
or if the end user causes a procedure to be invoked which changes the value.
For example, the When-List-Changed trigger will not fire if an end user duplicates
the item using a key mapped to the DUPLICATE_ITEM Built-in.
On Failure
no effect
Related topic
List Style property