This member overrides WebControl.SaveViewState(), and more complete documentation might be available in that topic.
Saves any state that was modified after the TrackViewState method was invoked.
Assembly: System.Web (in System.Web.dll)
Windows Phone 8.1, Windows Phone 8, 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.