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