Indicates whether there is an undo avaliable.
[Visual Basic .NET] Public ReadOnly Property HasUndo As Boolean
[C#] public bool HasUndo {get;}
Product Availability
Available with ArcGIS Desktop.
Remarks
Use to get/set a return to check if Undo is available
The get_HasUndo method is used check if a Execute method has been initiated. If so, Undo is available