Hi James,
That is OK if you can't help anymore.
Just so you know ... I have a layer of polylines and for each of these polyline, I want to insert a vertex on it (besides its existing vertices) at a known X,Y coordinates. I got most everything figured out except how to turn on its Edit Sketch Properties. Manually, when you double click on a polyline you would see all its vertices. And I want to do this via the codes.
I know VB 6, VB.Net and C also. So if you have the codes in these languages, that will work too.
Thanks, James.