private void SaveCement(CementConcrete entity)
        {
            var elm = _mapper.Map <TableHead>(entity);
            var ety = _context.TableHead.AsNoTracking().Where(x => x.Id == entity.Id).FirstOrDefault();

            if (ety != null)
            {
                _context.TableHead.Update(elm);
            }
            else
            {
                _context.TableHead.Add(elm);
            }
            _context.SaveChanges();
            List <ShuiNiHunLingTu> lst = entity.Data;

            foreach (var item in lst)
            {
                item.TableHeadId = elm.Id;
                var obj = _context.ShuiNiHunLingTu.AsNoTracking().Where(x => x.Id == item.Id).FirstOrDefault();
                if (obj == null)
                {
                    _context.ShuiNiHunLingTu.Add(item);
                }
                else
                {
                    _context.ShuiNiHunLingTu.Update(item);
                }
            }
            _context.SaveChanges();
        }
        private ObjectResult GetCementConcrete(GetTableDataDto dto)
        {
            TableHead th = _context.TableHead.Where(x => x.Id == dto.Id).FirstOrDefault();

            if (th == null)
            {
                CementConcrete entity = new CementConcrete()
                {
                    TableName = dto.TableName
                };
                List <ShuiNiHunLingTu> lst = new List <ShuiNiHunLingTu>();
                for (int i = 0; i < GetDataLength(dto.TableName, "Data"); i++)
                {
                    ShuiNiHunLingTu s = new ShuiNiHunLingTu();
                    lst.Add(s);
                }
                entity.Data = lst;
                return(Ok(new { code = 0, msg = "", data = entity, postion = GetPostion(dto.TableName) }));
            }
            else
            {
                var entity = _mapper.Map <CementConcrete>(th);
                var lst    = _context.ShuiNiHunLingTu.Where(x => x.TableHeadId == th.Id).ToList();
                entity.Data = lst;
                return(Ok(new { code = 0, msg = "", data = entity, postion = GetPostion(dto.TableName) }));
            }
        }