public async Task <IActionResult> PutMaterail(int id, Materail materail)
        {
            if (id != materail.MaterailId)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <ActionResult <Materail> > PostMaterail(Materail materail)
        {
            _context.Materail.Add(materail);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (MaterailExists(materail.MaterailId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetMaterail", new { id = materail.MaterailId }, materail));
        }