Control.OnKeyUp Method

Called before the KeyUp event occurs.

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

Syntax

'Declaration
Protected Overridable Sub OnKeyUp ( _
    e As KeyEventArgs _
)
protected virtual void OnKeyUp(
    KeyEventArgs e
)

Parameters

Remarks

The OnKeyUp method is called before any event handler for the KeyUp event 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.

This implementation does not change the handled state (the Handled property) of the KeyUp event data.

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 Handled the property, see Events Overview for Silverlight.

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.