Represents a method that will handle the NavigatorBase.ButtonClick event.
The event sender (typically the NavigatorBase descendant).
A NavigatorButtonClickEventArgs object containing event data.
When creating a NavigatorButtonClickEventHandler 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.