public IHttpActionResult PutORDER_HoaDonBanHang(int id, ORDER_HoaDonBanHang oRDER_HoaDonBanHang)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != oRDER_HoaDonBanHang.id)
            {
                return(BadRequest());
            }

            db.Entry(oRDER_HoaDonBanHang).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!ORDER_HoaDonBanHangExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetORDER_HoaDonBanHang(int id)
        {
            ORDER_HoaDonBanHang oRDER_HoaDonBanHang = db.ORDER_HoaDonBanHang.Find(id);

            if (oRDER_HoaDonBanHang == null)
            {
                return(NotFound());
            }

            return(Ok(oRDER_HoaDonBanHang));
        }
        public IHttpActionResult PostORDER_HoaDonBanHang(ORDER_HoaDonBanHang oRDER_HoaDonBanHang)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.ORDER_HoaDonBanHang.Add(oRDER_HoaDonBanHang);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = oRDER_HoaDonBanHang.id }, oRDER_HoaDonBanHang));
        }
        public IHttpActionResult DeleteORDER_HoaDonBanHang(int id)
        {
            ORDER_HoaDonBanHang oRDER_HoaDonBanHang = db.ORDER_HoaDonBanHang.Find(id);

            if (oRDER_HoaDonBanHang == null)
            {
                return(NotFound());
            }

            db.ORDER_HoaDonBanHang.Remove(oRDER_HoaDonBanHang);
            db.SaveChanges();

            return(Ok(oRDER_HoaDonBanHang));
        }