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UIElement.OnRenderSizeChanged Method

When overridden in a derived class, participates in rendering operations that are directed by the layout system. This method is invoked after layout update, and before rendering, if the element's RenderSize has changed as a result of layout update.

Namespace: System.Windows
Assembly: PresentationCore (in presentationcore.dll)

protected public:
virtual void OnRenderSizeChanged (
	SizeChangedInfo^ info
)
protected void OnRenderSizeChanged (
	SizeChangedInfo info
)
protected internal function OnRenderSizeChanged (
	info : SizeChangedInfo
)
You cannot use methods in XAML.

Parameters

info

The packaged parameters (SizeChangedInfo), which includes old and new sizes, and which dimension actually changes.

This method has no default implementation. A typical WPF framework-level element uses the override implementation from FrameworkElement. The FrameworkElement implementation invalidates the Width and Height properties and handles the basics of remaking the layout. Overriding OnRenderSizeChanged at the UIElement level implies that your element implementation is deliberately not using the WPF framework-level implementation, and therefore your element must handle layout logic more directly, typically by writing a replacement layout system.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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