| GrapeCity.Xaml.SpreadSheet.UI.UndoRedo Namespace > DragFillUndoAction Class : Undo(Object) Method | 
'Usage Dim instance As DragFillUndoAction Dim parameter As Object Dim value As Boolean value = instance.Undo(parameter)
true if undoing the action succeeds; otherwise, false.Target Platforms: Windows Server 2012, Windows RT