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Slider.OnKeyDown Method

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

Provides class handling for the UIElement.KeyDown event.

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

Syntax

'Declaration
Protected Overrides Sub OnKeyDown ( _
    e As KeyEventArgs _
)

protected override void OnKeyDown(
    KeyEventArgs e
)

Parameters

Remarks

This implementation increments or decrements the Value property by the SmallChange value according to the following table

Key Pressed

Slider direction

Result

Up or Right

Default

Increment

Up or Right

Reversed

Decrement

Down or Left

Default

Decrement

Down or Left

Reversed

Increment

The OnKeyDown method also 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 OnKeyDown in a derived class, make sure to call the base class’s OnKeyDown 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.