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UIElement.PreviewTextInput, événement

Occurs when this element gets text in a device-independent manner.

Espace de noms: System.Windows
Assembly : PresentationCore (dans presentationcore.dll)
Espace de noms XML :  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public event TextCompositionEventHandler PreviewTextInput
/** @event */
public final void add_PreviewTextInput (TextCompositionEventHandler value)

/** @event */
public final void remove_PreviewTextInput (TextCompositionEventHandler value)

En JScript, vous pouvez gérer les événements définis par une classe, mais vous ne pouvez pas définir les vôtres.
<object PreviewTextInput="TextCompositionEventHandler" .../>

Identifier field

PreviewTextInputEvent

Routing strategy

Tunneling

Delegate

TextCompositionEventHandler

  • The corresponding bubbling event is TextInput.

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

The PreviewTextInput event allows a component or application to listen for text input in a device-independent manner. The keyboard is the primary means of PreviewTextInput; but speech, handwriting, and other input devices can also generate PreviewTextInput.

Because of key combinations—either in default keyboards or through input method editors—multiple key events may raise just one text input event.

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

Microsoft .NET Framework 3.0 est pris en charge sur Windows Vista, Microsoft Windows XP SP2 et Windows Server 2003 SP1.

.NET Framework

Prise en charge dans : 3.0
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