Gets a user-specific string stored with the ticket.
Assembly: System.Web (in System.Web.dll)
If the FormsAuthenticationTicket is created using a constructor that does not supply a userData parameter, the property returns an empty string (""); otherwise, the version property returns the value supplied to the FormsAuthenticationTicket constructor.
You should limit the amount of data stored in the property. You must ensure that the size of the property does not result in an invalid cookie or an excessively long URL.
The following code example displays the property values of the FormsAuthenticationTicket for the current logged-on user.
If there is no logged-on user, the Identity property will be a null reference (Nothing in Visual Basic) and you will receive a compiler exception when attempting to cast the Identity property as a FormsIdentity object.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.