Enables the ability to undo actions that occur within undoable action units or transactions.
Namespace: System.Web.UI.Design Assembly: System.Design (in system.design.dll)
Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.