Safe way to test if a polyline reference is ok to access its properties.

oneMSN — Wed, 31 May 2017 00:52:02 GMT

I am hooked into the Database_ObjectModified event. I have a particular interest in polylines. When one is drawn I wish to do stuff with it. However I Have an issue with polylines which are generated by other operations, one case I have seen is when I do a point move action on a dynamic block, the database event offers up these polylines which I think may be part of a Jig!?? related to the moving of the dynamic entity.

My problem is I cant find a way to Identify these entities in a safe way so that I can ignore them.

I always have to deal with them by exception. one example I have is this:

            try
            {
                var testPropertyAccess = polyline.PolylineEntity.BlockName.Length;
            }
            catch
            {
                // Improper polyline.
                return;
            }

Other time I get a bad geometry error. or some other error when accessing the properties.

Is there any good safe way of determining if a polyline is actually one that the user has drawn rather than one of these temporary lines?

Re: Safe way to test if a polyline reference is ok to access its properties.

ActivistInvestor — Wed, 31 May 2017 04:21:03 GMT

Perhaps you missed my reply to your other post re. eDegenerateGeometry?

Re: Safe way to test if a polyline reference is ok to access its properties.

oneMSN — Wed, 31 May 2017 08:42:48 GMT

Yes I did. I will look now!

topic Re: Safe way to test if a polyline reference is ok to access its properties. in .NET Forum

Safe way to test if a polyline reference is ok to access its properties.

Re: Safe way to test if a polyline reference is ok to access its properties.

Re: Safe way to test if a polyline reference is ok to access its properties.