Article
11/18/2011

ComboBox.OnMouseWheel Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Provides handling for the MouseWheel event.

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

Syntax

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

protected override void OnMouseWheel(
    MouseWheelEventArgs e
)

Parameters

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

Remarks

The OnMouseWheel method is called before any event handler for the MouseWheel event is called. This method allows derived classes to handle the MouseWheel event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

This implementation marks the MouseWheel event as handled by setting the Handled property of the event data to true.

Notes to Inheritors

If you override OnMouseWheel, you can prevent registered delegates from receiving events by setting Handled to true. For more information about routed events and the Handled property, see Events Overview for Silverlight.

Version Information

Silverlight

Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

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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