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Thread ID:





21205 Nov 4,2004 12:48 PM UTC Nov 9,2004 03:44 PM UTC WinForms 5
Tags: Diagram
Administrator [Syncfusion]
Asked On November 4, 2004 12:48 PM UTC

Hi Arun, If I have 20 symbols in a digram, then I connect them using directed or just link. How can I determine the sequence (order)? what I am trying to do is to amke a flow chart and interpret it according drawing step by step. There also three port and four port symbol in my diagram, for example conditional loop. If -Then _Else will have four port, I need to know the data flow in/out. Thanks, Chris

Arun Srinivasan [Syncfusion]
Replied On November 5, 2004 11:35 AM UTC

Hi Chris, 1. As noted in this forums post, you will have to implement a mechanism with your application to handle this. 2. You can use the IGraphNode and the IGraphEdge interfaces to determine links coming in and going out of a Symbol. Refer to this forums post that also includes a sample which shows how you can have different colors for links coming in/ going out of a Symbol. Regards Arun

Administrator [Syncfusion]
Replied On November 8, 2004 03:27 PM UTC

Hi Arun, Here is what I have done. 1, I create customs symbols in palette, and drag them into a diagram 2,Link all symbols with order 3, I can itenerate all Nodes and downcast node to my custom symbol class. Here is what I want to do--Loop all symbols, and find out the connection sequence. in your changing in/out link color example, how can I find symbols which connected to rather than links? So could you make another example to show how connected symbols will change colors? Thanks, Chris

Administrator [Syncfusion]
Replied On November 8, 2004 09:24 PM UTC

Hi, Assuming we can get incoming Link and Outgoing Link, how can I find symbols which are connected on this Link? Thanks, Chris

Arun Srinivasan [Syncfusion]
Replied On November 8, 2004 09:54 PM UTC

Hi Chris As noted in the sample posted you could use the IGraphEdge interface as demonstrated by the following code snippet to determine the nodes (Symbols) connected to a Link: private void GetLinkSymbols_Click(object sender, System.EventArgs e) { if ((this.diagram1.SelectionList.Count == 1) || (this.diagram1.SelectionList.First.GetType() == typeof(Link))) { IGraphEdge curLink = this.diagram1.SelectionList.First as IGraphEdge; INode fromNode = curLink.FromNode as INode; INode toNode = curLink.ToNode as INode; MessageBox.Show("This link is between: " + fromNode.Name + " and " + toNode.Name); } } Regards Arun

Administrator [Syncfusion]
Replied On November 9, 2004 03:44 PM UTC

Arun, Thanks. It works. Chris


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