AutoCAD Map 3D

[#1]

Hi,

I have a question about topology creation on AcMap onward using .NET interface. My intention is to show the error markers when topology creation is failed. Here is my code snippet:

 if (topos.Exists(topoName)) { topos.Delete(topoName, false); }

CreateOptions options = CreateOptions.UsePersistentMarkers | CreateOptions.HighlightSliverPolygons | CreateOptions.StopAtMultipleCentroid;

topos.Create(topoName, linkCol, nodeCol, centCol, TopologyTypes.Polygon, options, 0.01); 

Unfortunately the code can't show persistent marker, the errors show up for a few moment and then went away. My question therefore are how to show the topology error marker including sliver polygon with c#?

Thank you, we look forward for your response..