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TextBoxBase.UndoLimit Property

Gets or sets the number of actions stored in the undo queue.

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

public int UndoLimit { get; set; }
<object UndoLimit="int" .../>

Property Value

Type: System.Int32
The number of actions stored in the undo queue. The default is –1, which means the undo queue is limited to the memory that is available.

ExceptionCondition
InvalidOperationException

UndoLimit is set after calling BeginChange and before calling EndChange.

Setting UndoLimit clears the undo queue. When UndoLimit is set to –1, the undo queue is limited only by the memory that is available. When UndoLimit is set to 0, undo is disabled on the TextBoxBase.

UndoLimit is introduced in the .NET Framework version 3.5. For more information, see .NET Framework Versions and Dependencies.

.NET Framework

Supported in: 4.5, 4, 3.5 SP1, 3.0 SP1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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