Assembly: System.Web.Mobile (in system.web.mobile.dll)
If you expect to restore a page from a view state, and the page's underlying session has expired, this method's default implementation raises an exception. You can override this method, perform custom handling to restore the page state without relying on view state, and return without calling the base implementation.
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.