UIElement.PreviewLostKeyboardFocus Evento

Definición

Se produce cuando este elemento deja de recibir el foco del teclado.Occurs when the keyboard is no longer focused on this element.

public:
 virtual event System::Windows::Input::KeyboardFocusChangedEventHandler ^ PreviewLostKeyboardFocus;
public event System.Windows.Input.KeyboardFocusChangedEventHandler PreviewLostKeyboardFocus;
member this.PreviewLostKeyboardFocus : System.Windows.Input.KeyboardFocusChangedEventHandler 
Public Custom Event PreviewLostKeyboardFocus As KeyboardFocusChangedEventHandler 

Implementaciones

Comentarios

Dado que este evento utiliza el enrutamiento de tunelización, el elemento que perdió el foco podría ser un elemento secundario en lugar del elemento en el que está asociado el controlador de eventos.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. Compruebe la Source en los datos del evento para determinar el elemento real que perdió el foco.Check the Source in the event data to determine the actual element that lost focus.

Este evento crea un alias para el evento adjunto de Keyboard.PreviewLostKeyboardFocus para esta clase, de modo que PreviewLostKeyboardFocus forme parte de la lista de miembros de clase cuando UIElement se herede como un elemento base.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 UIElement is inherited as a base element. Los controladores de eventos adjuntos al evento PreviewLostKeyboardFocus se adjuntan al evento adjunto Keyboard.PreviewLostKeyboardFocus subyacente y reciben la misma instancia de datos de evento.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.

Información sobre eventos enrutadosRouted Event Information

Campo de identificadorIdentifier field PreviewLostKeyboardFocusEvent
Estrategia de enrutamientoRouting strategy TúnelesTunneling
DelegarDelegate KeyboardFocusChangedEventHandler

Se aplica a

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