Defines the method ASP.NET server controls must implement to handle postback events.
Assembly: System.Web (in System.Web.dll)
When implemented by a class, enables a server control to process an event raised when a form is posted to the server.
To create a server control that captures form submission information from the browser, you must implement this interface. For more information on how to use this interface, see Server Event Handling in ASP.NET Web Forms Pages.
Available since 1.1