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UIElement.PreviewGotKeyboardFocus-Ereignis

Occurs when the keyboard is focused on this element.

Namespace: System.Windows
Assembly: PresentationCore (in presentationcore.dll)
XML-Namespaces:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public event KeyboardFocusChangedEventHandler PreviewGotKeyboardFocus
/** @event */
public final void add_PreviewGotKeyboardFocus (KeyboardFocusChangedEventHandler value)

/** @event */
public final void remove_PreviewGotKeyboardFocus (KeyboardFocusChangedEventHandler value)

In JScript können Sie die durch eine Klasse definierten Ereignisse verwenden, jedoch keine eigenen definieren.
<object PreviewGotKeyboardFocus="KeyboardFocusChangedEventHandler" .../>

Identifier field

PreviewGotKeyboardFocusEvent

Routing strategy

Tunneling

Delegate

KeyboardFocusChangedEventHandler

Because this event uses tunneling routing, the element that has focus might be a child element instead of the element where the event handler is actually attached. Check the Source in the event data to determine the actual element that has focus.

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

Microsoft .NET Framework 3.0 wird unter Windows Vista, Microsoft Windows XP SP2 und Windows Server 2003 SP1 unterstützt.

.NET Framework

Unterstützt in: 3.0
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