ContentElement::PreviewLostKeyboardFocus Event
Occurs when the keyboard is no longer focused on this element.
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
public: virtual event KeyboardFocusChangedEventHandler^ PreviewLostKeyboardFocus { void add (KeyboardFocusChangedEventHandler^ value); void remove (KeyboardFocusChangedEventHandler^ value); }
<object PreviewLostKeyboardFocus="KeyboardFocusChangedEventHandler" .../>
Implements
IInputElement::PreviewLostKeyboardFocusIdentifier field | |
Routing strategy | Tunneling |
Delegate |
The corresponding bubbling event is LostKeyboardFocus.
Override OnPreviewLostKeyboardFocus to implement class handling for this event in derived classes.
Because this event uses tunneling routing, the element that lost 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 lost focus.
This event creates an alias for the Keyboard::PreviewLostKeyboardFocus attached event for this class, so that PreviewLostKeyboardFocus is part of the class members list when ContentElement is inherited as a base element. Event handlers that are attached to the PreviewLostKeyboardFocus event are attached to the underlying Keyboard::PreviewLostKeyboardFocus attached event and receive the same event data instance.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.