Gets or sets the area relative to which the context menu is positioned when it opens.
Assembly: PresentationFramework (in PresentationFramework.dll)
You can position a ContextMenu by setting the PlacementTarget, , Placement, HorizontalOffset, and VerticalOffsetProperty properties. These properties behave the same as they do for a Popup. For more information, see Popup Placement Behavior.
Available since 3.0