VirtualizingStackPanel.OnViewportOffsetChanged(Vector, Vector) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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
The old offset of the viewport.
- newViewportOffset
- 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
Bekerjasama dengan kami di GitHub
Sumber untuk kandungan ini boleh didapati di GitHub, di mana anda juga boleh mencipta dan menyemak isu dan menarik permintaan. Untuk maklumat lanjut, lihat panduan penyumbang kami.