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VirtualizingStackPanel.OnViewportSizeChanged Method

Called when the size of the viewport changes.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected virtual void OnViewportSizeChanged(
	Size oldViewportSize,
	Size newViewportSize
)

Parameters

oldViewportSize
Type: System.Windows.Size

The old size of the viewport.

newViewportSize
Type: System.Windows.Size

The new size of the viewport.

Use this method, in a derived class, to detect and respond to changes in the viewport size.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1, 3.0 SP2

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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