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TextBoxBase.IsUndoEnabled Property

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Gets or sets a value that indicates whether undo support is enabled for the text-editing control.

Namespace: System.Windows.Controls.Primitives
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

Syntax

C++

public bool IsUndoEnabled { get; set; }

XAML Attribute Usage

<object IsUndoEnabled="bool" .../>

Property Value

Type: System.Boolean
true if undo support is enabled; otherwise, false. The default value is true.

Dependency Property Information

Identifier field	IsUndoEnabledProperty
Metadata properties set to true	None

Remarks

Setting this property to false clears the undo stack. Therefore, if you disable undo and then re-enable it, undo commands still do not work because the undo stack was emptied when you disabled undo.

Examples

The following example demonstrates how to use the IsUndoEnabled property in Extensible Application Markup Language (XAML).

XAML


<TextBox TextWrapping="Wrap"
         Name="myTextBox" 
         Width="500" 
         Height="200" 
         AcceptsReturn="True"
         IsUndoEnabled="True"
         VerticalScrollBarVisibility="Visible"
         HorizontalScrollBarVisibility="Auto" 
         Margin="25">

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 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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.

Reference

TextBoxBase Class

System.Windows.Controls.Primitives Namespace

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