MARKUS

    public class ArrowControl_Multi : CommentUserInfo, IDisposable, INotifyPropertyChanged, IDashControl

        public override void Copy(CommentUserInfo lhs)

        {

            if (lhs is ArrowControl_Multi item)

            {

                this.LineSize = item.LineSize;

                this.StartPoint = new Point(item.StartPoint.X, item.StartPoint.Y);

                this.MiddlePoint = new Point(item.MiddlePoint.X, item.MiddlePoint.Y);

                this.DashSize = item.DashSize;

                this.EndPoint = new Point(item.EndPoint.X, item.EndPoint.Y);

                this.PointSet = item.PointSet.ConvertAll(x => new Point(x.X, x.Y));

                this.Opacity = item.Opacity;

                this.StrokeColor = item.StrokeColor;

                this.UserID = item.UserID;

                this.Memo = item.Memo;

            }

        }

        public override CommentUserInfo Clone()

        {

            var clone = new ArrowControl_Multi();

            clone.Copy(this);

            return clone;

        }