public IHttpActionResult PutGiaoNhanSau(int id, GiaoNhanSau giaoNhanSau)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

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

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

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

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetGiaoNhanSau(int id)
        {
            GiaoNhanSau giaoNhanSau = db.GiaoNhanSaus.Find(id);

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

            return(Ok(giaoNhanSau));
        }
        public IHttpActionResult PostGiaoNhanSau(GiaoNhanSau giaoNhanSau)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.GiaoNhanSaus.Add(giaoNhanSau);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = giaoNhanSau.MaGiaoNhanSau }, giaoNhanSau));
        }
        public IHttpActionResult DeleteGiaoNhanSau(int id)
        {
            GiaoNhanSau giaoNhanSau = db.GiaoNhanSaus.Find(id);

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

            db.GiaoNhanSaus.Remove(giaoNhanSau);
            db.SaveChanges();

            return(Ok(giaoNhanSau));
        }