Begins the processing that occurs when an unhandled attached routed event reaches an element in its route that is derived from this class.
Assembly: System.Activities.Presentation (in System.Activities.Presentation.dll)
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
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