Microsoft Silverlight will reach end of support after October 2021. Learn more.
Provides class handling for the KeyDown event that occurs when the user presses a key while this control has focus.
Assembly: System.Windows (in System.Windows.dll)
'Declaration Protected Overrides Sub OnKeyDown ( _ e As KeyEventArgs _ )
protected override void OnKeyDown( KeyEventArgs e )
The event data.
e is nulla null reference (Nothing in Visual Basic).
The user presses the SPACEBAR.
The user presses ENTER and the control accepts keyboard input.
Notes to Inheritors
If you override OnKeyDown, always call the base implementation in your OnKeyDown implementation. Failure to call the base implementation prevents base classes from handling the event with a class handler, which might change the run-time behavior of the final class. You can call the base implementation either before or after your special handling, depending on your requirements.
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.