Share via

  • Article

Slider.OnMouseLeftButtonDown Method

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

Provides class handling for the MouseLeftButtonDown event.

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

Syntax

'Declaration
Protected Overrides Sub OnMouseLeftButtonDown ( _
    e As MouseButtonEventArgs _
)

protected override void OnMouseLeftButtonDown(
    MouseButtonEventArgs e
)

Remarks

This implementation marks the MouseLeftButtonDown event as handled by setting the MouseButtonEventArgs.Handled property of the event data to true. In addition, it makes sure that the Slider control has the focus and has captured the mouse.

The OnMouseLeftButtonDown method allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnMouseLeftButtonDown in a derived class, make sure to call the base class’s OnMouseLeftButtonDown method so that registered delegates receive the event.

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.