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UndoAction Enumeration

How the undo stack caused or is affected by a text change.

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

Public Enumeration UndoAction
<object property="enumerationMemberName" .../>

Member nameDescription
Clear This change will clear the undo stack
Create This change will create a new undo unit
Merge This change will merge into the previous undo unit
None This change will not affect the undo stack at all
Redo This change is the result of a call to Redo()
Undo This change is the result of a call to Undo()

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.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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