Article
11/18/2011

TreeViewItem.OnKeyUp Method

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

Provides handling for the KeyUp event.

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

Syntax

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

protected override void OnKeyUp(
    KeyEventArgs e
)

Parameters

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

Remarks

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

Notes to Inheritors

If you override OnKeyUp, 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, 3

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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