NameOfEventSender(required; String literal)
The name of a class or object instance and its event, such as Button1.Click
NameOfEventHandler(required; String literal)
The name of a subroutine that is to serve as the event handler for
Binds an event handler to a built-in or custom event. This makes it possible to bind several event handlers to a single event.
NameOfEventSender takes the form class.event or object.event.
You can stop handling events defined by the
AddHandler statement by calling the
Handles keyword can be used to receive event
notification for the lifetime of an object. In contrast,
can be used to dynamically add and remove event notification at