Represents a method that will handle the RepositoryItem.EditValueChanging event.
public delegate void ChangingEventHandler( object sender, ChangingEventArgs e );
Public Delegate Sub ChangingEventHandler( sender As Object, e As ChangingEventArgs )
The event sender (typically the BaseEdit descendant).
A ChangingEventArgs object containing data related to the event.
When creating a ChangingEventHandler delegate, you identify the method that will handle the corresponding event. To associate an event with your event handler, add a delegate instance to this event. The event handler is called whenever the event occurs unless you remove the delegate. For more information on event handler delegates, see Events and Delegates in MSDN.