Microsoft Silverlight will reach end of support after October 2021. Learn more.
Called before the MouseWheel event occurs to provide handling for the event in a derived class without attaching a delegate.
Assembly: System.Windows (in System.Windows.dll)
'Declaration Protected Overridable Sub OnMouseWheel ( _ e As MouseWheelEventArgs _ )
protected virtual void OnMouseWheel( MouseWheelEventArgs e )
The OnMouseWheel method is called before any event handler for the MouseWheel event is called. This method enables derived classes to handle the MouseWheel event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.