Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

ButtonBase.OnKeyDown Method

Provides class handling for the KeyDown routed event that occurs when the user presses a key while this control has focus.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)
protected override void OnKeyDown(
	KeyEventArgs e
)
You cannot use methods in XAML.

Parameters

e
Type: System.Windows.Input.KeyEventArgs

The event data.

This implementation marks the KeyDown event as handled by setting the Handled property of the event data to true when ClickMode is not set to Hover and one of the following cases are true:

  • The user presses the SPACEBAR.

  • The user presses ENTER and AcceptsReturn is true for this control.

In all other cases, this implementation does not change the handled state (the Handled property) of the KeyDown event data.

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.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.