VirtualizingStackPanel.OnViewportOffsetChanged Method (Vector, Vector)

 

Called when the offset of the viewport changes as a user scrolls through content.

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

protected virtual void OnViewportOffsetChanged(
	Vector oldViewportOffset,
	Vector newViewportOffset
)

Parameters

oldViewportOffset
Type: System.Windows.Vector

The old offset of the viewport.

newViewportOffset
Type: System.Windows.Vector

The new offset of the viewport

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

.NET Framework
Available since 3.0
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