Occurs when a user is authenticated.
Assembly: System.Web (in System.Web.dll)
The event is raised when a user uses the Login control to log in to a Web site. Custom authentication schemes can use the event to authenticate users.
When a user uses the Login control to log in to a Web site, all data in the view state and all post data is lost. Do not perform actions in the event that rely on the view state.
For more information about handling events, see Handling and Raising Events.Notes to Implementers
Custom authentication schemes should set the Authenticated property to true to indicate that a user has been authenticated.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.