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.NET Framework Class Library
UIElementOnVisualParentChanged Method

Invoked when the parent element of this UIElement reports a change to its underlying visual parent.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
Protected Friend Overrides Sub OnVisualParentChanged ( _
	oldParent As [%$TOPIC/ms599318_en-us_VS_110_2_0_0_0_0%] _
protected internal override void OnVisualParentChanged(
	[%$TOPIC/ms599318_en-us_VS_110_2_0_1_0_0%] oldParent
protected public:
virtual void OnVisualParentChanged(
	[%$TOPIC/ms599318_en-us_VS_110_2_0_2_0_0%]^ oldParent
) override
abstract OnVisualParentChanged : 
        oldParent:[%$TOPIC/ms599318_en-us_VS_110_2_0_3_0_0%] -> unit  
override OnVisualParentChanged : 
        oldParent:[%$TOPIC/ms599318_en-us_VS_110_2_0_3_0_1%] -> unit


Type: System.WindowsDependencyObject

The previous parent. This may be provided as if the DependencyObject did not have a parent element previously.


Notes to Inheritors

If you override this method, always call the base implementation. The default base implementation performs some internal maintenance of reverse-inherited property state. Failing to call the base implementation will invalidate this state.

This method overrides VisualOnVisualParentChanged. FrameworkElement and Window both also override the UIElement implementation of OnVisualParentChanged, and Window seals it.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.