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.NET Framework Class Library
UIElementPreviewTextInput Event

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

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Syntax
Public Event PreviewTextInput As [%$TOPIC/ms596781_en-us_VS_110_1_0_0_0_0%]
public event [%$TOPIC/ms596781_en-us_VS_110_1_0_1_0_0%] PreviewTextInput
public:
virtual   event [%$TOPIC/ms596781_en-us_VS_110_1_0_2_0_0%]^ PreviewTextInput {
	void add ([%$TOPIC/ms596781_en-us_VS_110_1_0_2_0_1%]^ value);
	void remove ([%$TOPIC/ms596781_en-us_VS_110_1_0_2_0_2%]^ value);
}
abstract PreviewTextInput : IEvent<[%$TOPIC/ms596781_en-us_VS_110_1_0_3_0_0%],
    [%$TOPIC/ms596781_en-us_VS_110_1_0_3_0_1%]>
override PreviewTextInput : IEvent<[%$TOPIC/ms596781_en-us_VS_110_1_0_3_0_2%],
    [%$TOPIC/ms596781_en-us_VS_110_1_0_3_0_3%]>
<object PreviewTextInput="[%$TOPIC/ms596781_en-us_VS_110_1_0_4_0_0%]" .../>

Implements

IInputElementPreviewTextInput
Routed Event Information

Identifier field

PreviewTextInputEvent

Routing strategy

Tunneling

Delegate

TextCompositionEventHandler

Remarks

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 TextCompositionManagerPreviewTextInput 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 TextCompositionManagerPreviewTextInput attached event and receive the same event data instance.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Platforms

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.