How to bind nested list of objects in ASP.NET gridview itemtemplate ..?

List<Newss> _objNwslst = new List<Newss>();
               List<Industry> _objIndstry = new List<Industry>();
               while (sDr.Read())
               {
                   _objIndstry.Add(new Industry()
                   {
                       ParentID = sDr.GetInt32(sDr.GetOrdinal("Industry")),
                       IndstryName = sDr.GetString(sDr.GetOrdinal("IndstryName")),
           
                   });
                   _objState.CountryID = sDr.GetInt32(sDr.GetOrdinal("CountryID"));
                       objIndstry = _objIndstry,
                   });
               }
               return _objNwslst;