Represents a method that will handle the TreeList.ValidateNode event.
public delegate void ValidateNodeEventHandler( object sender, ValidateNodeEventArgs e );
Public Delegate Sub ValidateNodeEventHandler( sender As Object, e As ValidateNodeEventArgs )
The event sender (the TreeList object which raised the event).
A ValidateNodeEventArgs object that contains event data.
When creating a ValidateNodeEventHandler 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.