public void AddMessage(KnotSave Source, KnotSave Target)
        {
            Point         Start = new Point(Source.CordX, Source.CordY);
            Point         End   = new Point(Target.CordX, Target.CordY);
            MessageVisual ms    = new MessageVisual(Start, End);

            Can.Children.Add(ms);
        }
 public void DeleteMessage(MessageVisual MessageVisual)
 {
     Can.Children.Remove(MessageVisual);
 }