When overridden in a derived class, gets a collection of objects that are declared by object elements that are marked as server controls and scoped to the current session in the application's Global.asax file.
Assembly: System.Web (in System.Web.dll)
Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.