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UIElement.PreviewTextInput Event

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

Namespace: System.Windows
Assembly: PresentationCore (in presentationcore.dll)
XML Namespace:  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)

In JScript, you can handle the events defined by a class, but you cannot define your own.
<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.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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