public async Task <IActionResult> PutEtrainGroup(short id, EtrainGroup etrainGroup)
        {
            if (id != etrainGroup.EtrainGroupId)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <ActionResult <EtrainGroup> > PostEtrainGroup(EtrainGroup etrainGroup)
        {
            _context.EtrainGroup.Add(etrainGroup);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (EtrainGroupExists(etrainGroup.EtrainGroupId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetEtrainGroup", new { id = etrainGroup.EtrainGroupId }, etrainGroup));
        }