Used as a returned value to instruct the binding engine not to perform any action.
Assembly: PresentationFramework (in PresentationFramework.dll)
A binding source property or a converter can return to instruct the binding engine not to perform any action. For example, to instruct the binding engine not to transfer a value to the binding target, not to move to the next Binding in a PriorityBinding, or not to use the FallBackValue or default value.
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.