public IHttpActionResult PutTraCuuThongTin(int id, TraCuuThongTin traCuuThongTin)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

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

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

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

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetTraCuuThongTin(int id)
        {
            TraCuuThongTin traCuuThongTin = db.TraCuuThongTin.Find(id);

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

            return(Ok(traCuuThongTin));
        }
        public IHttpActionResult PostTraCuuThongTin(TraCuuThongTin traCuuThongTin)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.TraCuuThongTin.Add(traCuuThongTin);
            db.SaveChanges();

            return(CreatedAtRoute("DefaultApi", new { id = traCuuThongTin.MaTraCuu }, traCuuThongTin));
        }
        public IHttpActionResult DeleteTraCuuThongTin(int id)
        {
            TraCuuThongTin traCuuThongTin = db.TraCuuThongTin.Find(id);

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

            db.TraCuuThongTin.Remove(traCuuThongTin);
            db.SaveChanges();

            return(Ok(traCuuThongTin));
        }