Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

TextBox.OnKeyUp Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Called before KeyUp event occurs.

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

protected override void OnKeyUp(
	KeyEventArgs e
)

Parameters

e
Type: System.Windows.Input.KeyEventArgs
The data for the event.

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 marks the KeyUp event as handled by setting the Handled property of the event data to true.

Notes to Inheritors

If you override the OnKeyUp method, 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 for Windows Phone 8.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Show: