MxDrawEntity ent = (MxDrawEntity)com;

        if (ent.LineType == "ByLayer")
        {
            MxDrawDatabase database = (MxDrawDatabase) axMxDrawX1.GetDatabase();
            MxDrawLayerTableRecord rec = database.GetLayerTable().GetAt(ent.Layer);

            MxDrawLinetypeTableRecord lineTypeRec = (MxDrawLinetypeTableRecord)axMxDrawX1.ObjectIdToObject(rec.LinetypeObjectId);

            MessageBox.Show(lineTypeRec.Name);
        }
        else
        {
            MessageBox.Show(ent.LineType);
        }