Occurs after an end-user has typed and submitted a parameter in the Action's editor, and after the ParametrizedAction.Value property has been changed in code.
[Browsable(false)] public event EventHandler ValueChanged
<Browsable(False)> Public Event ValueChanged As EventHandler
The ValueChanged event handler receives an argument of the EventArgs type.
Handle this event to execute custom code in response to a change in the current Parametrized Action's ParametrizedAction.Value property. If you need to respond to the Action's execution, handle the ParametrizedAction.Execute event, which is raised after the ValueChanged event.
An end-user can submit the typed parameter by pressing ENTER (in WinForms applications) or the button that accompanies the editor. So, do not use this event if you want to execute your code immediately after a value is selected in the editor. In this case, access the editor as described in the How to: Customize Action Controls topic.