Occurs when the handler is selected to respond to the request.
'Usage Dim instance As HttpApplication Dim handler As EventHandler AddHandler instance.MapRequestHandler, handler 'Declaration Public Event MapRequestHandler As EventHandler
The MapRequestHandler event is used by the ASP.NET infrastructure to determine the request handler for the current request. For more information, see How to: Register HTTP Handlers.
For more information about how to handle events, see Consuming Events.
MapRequestHandler is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003