VirtualizingStackPanel.OnViewportOffsetChanged(Vector, Vector) VirtualizingStackPanel.OnViewportOffsetChanged(Vector, Vector) VirtualizingStackPanel.OnViewportOffsetChanged(Vector, Vector) VirtualizingStackPanel.OnViewportOffsetChanged(Vector, Vector) Method

Definition

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

protected:
 virtual void OnViewportOffsetChanged(System::Windows::Vector oldViewportOffset, System::Windows::Vector newViewportOffset);
protected virtual void OnViewportOffsetChanged (System.Windows.Vector oldViewportOffset, System.Windows.Vector newViewportOffset);
abstract member OnViewportOffsetChanged : System.Windows.Vector * System.Windows.Vector -> unit
override this.OnViewportOffsetChanged : System.Windows.Vector * System.Windows.Vector -> unit
Protected Overridable Sub OnViewportOffsetChanged (oldViewportOffset As Vector, newViewportOffset As Vector)

Parameters

oldViewportOffset
Vector Vector Vector Vector

The old offset of the viewport.

newViewportOffset
Vector Vector Vector Vector

The new offset of the viewport

Remarks

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

Applies to