public async Task <IActionResult> PutTuVanKh(string id, TuVanKh tuVanKh)
        {
            if (id != tuVanKh.Id)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <ActionResult <TuVanKh> > PostTuVanKh(TuVanKh tuVanKh)
        {
            _context.TuVanKhs.Add(tuVanKh);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (TuVanKhExists(tuVanKh.Id))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetTuVanKh", new { id = tuVanKh.Id }, tuVanKh));
        }