When overridden in a derived class, returns an alternative user interface (UI) parent for this element if no visual parent exists.
Assembly: PresentationCore (in PresentationCore.dll)
The default virtual implementation of this method returns null. FrameworkElement provides a practical implementation.
Alternative parents are used for event routing, in cases where an element creates an alternative parent structure so that its events are routed in a way that diverges from the standard pattern of routing up the visual tree to the standard parent, or downward in the preview routing strategy.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.