MegaMan.LevelEditor.StageForm.Undo C# (CSharp) Метод

        public void Undo()
        {
            var action = history.Undo();

            if (action != null)
            {
                action.Run();
            }
        }

 public void Undo()
 {
     if (stageForm != null)
     {
         stageForm.Undo();
     }
 }