doe = detail.GetObjects(new Type[] { typeof(tsd.Part)});


            int n = doe.GetSize();
            int n0 = 0;

            while(doe.MoveNext())
            {
                tsd.Part part = doe.Current as tsd.Part;
                tsd.DrawingObjectEnumerator marks = part.GetRelatedObjects(new Type[] { typeof(tsd.Mark) });
                while(marks.MoveNext())
                {
                    System.Collections.IEnumerator en = (marks.Current as tsd.Mark).Attributes.Content.GetEnumerator();
                    while (en.MoveNext())
                    {
                        if (en.Current is tsd.PropertyElement)
                        {
                            tsd.PropertyElement po = en.Current as tsd.PropertyElement;
                            if (po.Name == "ASSEMBLY_POS")
                            {
                                n0++;
                            }
                        }
                    }
                }