Defines a callback method that will be invoked when a context item changes.
Assembly: System.Activities.Presentation (in System.Activities.Presentation.dll)
This callback provides a mechanism for interested parties in both the host and the workflow designer to subscribe to updates to a ContextItem published to the editing context of the workflow designer.
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.