/**
* Initialize a new UndoState object with an IUndo object and summary of the undo-able action.
*/
public UndoState(IUndo target, string msg)
{
this.target = target;
this.message = msg;
this.values = target.RecordState();
}
public void Push(IUndo action)
{
UndoStack.Push(action);
RedoStack.Clear();
}