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How to know links from/to a symbol

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20458 Oct 19,2004 08:16 AM Oct 26,2004 10:12 AM Windows Forms 2
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Tags: Diagram
Administrator [Syncfusion]
Asked On October 19, 2004 08:16 AM

when I click a symbol, I want to know all links from it(TailPort) and all links to it (HeadPort). Any sample code? Thanks

Administrator [Syncfusion]
Replied On October 19, 2004 02:18 PM

Hi You should use the IGraphNode Interface to accomplish what you are seeking. Run this sample and add a few Symbols and Links. Select a Symbol and click on the "Change Link Colors" button. Here is the code snippet which changes the colors of the links coming into and leaving out of the selected instance of MySymbol: if ((this.diagram1.SelectionList.Count == 1) || (this.diagram1.SelectionList.First.GetType() == typeof(MySymbol))) { IGraphNode curNode = this.diagram1.SelectionList.First as IGraphNode; if (curNode != null) { IEnumerator enumedgesEntering = curNode.EdgesEntering.GetEnumerator(); IEnumerator enumedgesLeaving = curNode.EdgesLeaving.GetEnumerator(); //Incoming Links - Blue ICollection edgesEntering = curNode.EdgesEntering; while (enumedgesEntering.MoveNext()) { Link incomingLink = enumedgesEntering.Current as Link; incomingLink.LineStyle.LineColor = Color.Blue; } //Incoming Links - Blue ICollection edgesLeaving = curNode.EdgesLeaving; while (enumedgesLeaving.MoveNext()) { Link leavingLink = enumedgesLeaving.Current as Link; leavingLink.LineStyle.LineColor = Color.Red; } this.diagram1.Refresh(); } } Regards Arun

Administrator [Syncfusion]
Replied On October 26, 2004 10:12 AM

Thank you for help. Now my code works.

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