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TextChange Class

Contains information about the changes that occur in the TextChanged event.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

public class TextChange
You cannot directly create an instance of this class in XAML.

A TextChange object specifies where a change occurred in a TextBox or RichTextBox. The Offset property specifies the position of the change, the AddedLength property specifies how many symbols were added, and the RemovedLength property specifies how many symbols were removed. When the change occurs in a TextBox, a symbol is a single character. When a change occurs in a RichTextBox, a symbol is one of the following:

TextChange is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5 SP1, 3.0 SP1

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