.NET Framework 4.6 and 4.5
Called when a change in scrolling state is detected, such as a change in scroll position, extent, or viewport size.
protected virtual void OnScrollChanged(
If you override this method, call base.OnScrollChanged(ScrollChangedEventArgs) to ensure that this event is raised.
Supported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1