public async Task <IActionResult> PostGiaLk([FromBody] GiaLk giaLk)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            _context.GiaLk.Add(giaLk);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (GiaLkExists(giaLk.MaLk))
                {
                    return(new StatusCodeResult(StatusCodes.Status409Conflict));
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetGiaLk", new { id = giaLk.MaLk }, giaLk));
        }
        public async Task <IActionResult> PutGiaLk([FromRoute] string id, [FromBody] GiaLk giaLk)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

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

            _context.Entry(giaLk).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!GiaLkExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(NoContent());
        }