Code

Diagram.RegisterItemClass(typeof(EvLinkWithParam), "Evget:EvLinkWithParam", 100);
 

Code

        public override DiagramItem Clone(bool clipboard)
        {
            EvLinkWithParam cloneLink = new EvLinkWithParam();
            cloneLink.EvConditionColors = this.EvConditionColors;
            cloneLink.EvBindParam = this.EvBindParam;
            //....Set Customer Properties Value to new Link
            //how to get the link‘s default Properties to it(like startpoint,segment...and so on).
            return cloneLink;
        }