public IHttpActionResult PostKH_LOAI(KH_LOAI kH_LOAI)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.KH_LOAI.Add(kH_LOAI);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (KH_LOAIExists(kH_LOAI.MA_LOAI_KHACH))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtRoute("DefaultApi", new { id = kH_LOAI.MA_LOAI_KHACH }, kH_LOAI));
        }
        public IHttpActionResult PutKH_LOAI(string id, KH_LOAI kH_LOAI)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

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

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

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

            return(StatusCode(HttpStatusCode.NoContent));
        }
        public IHttpActionResult GetKH_LOAI(string id)
        {
            KH_LOAI kH_LOAI = db.KH_LOAI.Find(id);

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

            return(Ok(kH_LOAI));
        }
        public IHttpActionResult DeleteKH_LOAI(string id)
        {
            KH_LOAI kH_LOAI = db.KH_LOAI.Find(id);

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

            db.KH_LOAI.Remove(kH_LOAI);
            db.SaveChanges();

            return(Ok(kH_LOAI));
        }