Статья
11/18/2011

Control.OnMouseWheel Method

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.

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

Syntax

'Declaration
Protected Overridable Sub OnMouseWheel ( _
    e As MouseWheelEventArgs _
)

protected virtual void OnMouseWheel(
    MouseWheelEventArgs e
)

Parameters

e
Type: System.Windows.Input.MouseWheelEventArgs
A MouseWheelEventArgs that contains the event data.

Remarks

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.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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