public int Edit(Noiphathanh nph)
        {
            Noiphathanh nphs = tb.Noiphathanh.Find(nph.Idph);

            nphs.Tenph = nph.Tenph;
            try
            {
                tb.Entry(nphs).State = EntityState.Modified;
                tb.SaveChanges();
                return(1);
            }
            catch
            {
                throw;
            }
        }
        public int Create([FromBody] Noiphathanh nph)
        {
            nph.Idph = Auto_id();

            tb.Noiphathanh.Add(nph);
            try
            {
                if (ModelState.IsValid)
                {
                    tb.SaveChanges();
                }
                return(1);
            }
            catch (DbUpdateException)
            {
                throw;
            }
        }
        public int Delete(string id)
        {
            try
            {
                Noiphathanh nph = tb.Noiphathanh.Find(id);

                if (nph != null)
                {
                    tb.Noiphathanh.Remove(nph);
                    tb.SaveChanges();
                    return(1);
                }
                else
                {
                    return(0);
                }
            }
            catch
            {
                throw;
            }
        }