Public Event PreviewKeyDown As KeyEventHandler

Dim instance As UIElement
Dim handler As KeyEventHandler

AddHandler instance.PreviewKeyDown, handler

public event KeyEventHandler PreviewKeyDown

public:
virtual  event KeyEventHandler^ PreviewKeyDown {
    void add (KeyEventHandler^ value);
    void remove (KeyEventHandler^ value);
}

JScript does not support events.

<object PreviewKeyDown="KeyEventHandler" .../>

Implements

• The corresponding bubbling event is KeyDown.

• Override OnPreviewKeyDown to implement class handling for this event in derived classes.

Key handling interacts with other platform features such as commanding and text composition. The KeyDown event is a lower-level text input event that might not behave as expected on certain controls. This is because some controls have control compositing or class handling that provides a higher-level version of text input handling and related events.

This event creates an alias for the Keyboard..::.PreviewKeyDown attached event for this class, so that PreviewKeyDown is part of the class members list when UIElement is inherited as a base element. Event handlers that are attached to the PreviewKeyDown event are attached to the underlying Keyboard..::.PreviewKeyDown attached event and receive the same event data instance.

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

.NET Framework

Reference

Other Resources