sequence

[Administrator]

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]

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]

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]

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]

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]

Arun,

Thanks. It works.

Chris