This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
Raises the Unload event.
Assembly: System.Web (in System.Web.dll)
This method has been overridden to unregister the validation control on the page.
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.Notes to Inheritors
When overriding in a derived class, be sure to call the base class's method so that registered delegates receive the event.