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ButtonBaseOnKeyUp Method
 

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

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

Syntax
protected override void OnKeyUp(
	KeyEventArgs e
)
protected:
virtual void OnKeyUp(
	KeyEventArgs^ e
) override
override OnKeyUp : 
        e:KeyEventArgs -> unit
Protected Overrides Sub OnKeyUp (
	e As KeyEventArgs
)

Parameters

e
Type:

The event data for the KeyUp event.

Remarks

This implementation marks the KeyUp event as handled by setting the property of the event data to true when the user releases the SPACEBAR. Otherwise, this implementation does not change the handled state (the property) of the KeyUp event data.

Notes to Inheritors:

If you override OnKeyUp, always call the base implementation in your OnKeyUp 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.

Version Information
.NET Framework
Available since 3.0
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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