public async Task <IActionResult> PutEtransformer(short id, Etransformer etransformer)
        {
            if (id != etransformer.EtransformerId)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <ActionResult <Etransformer> > PostEtransformer(Etransformer etransformer)
        {
            _context.Etransformer.Add(etransformer);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (EtransformerExists(etransformer.EtransformerId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetEtransformer", new { id = etransformer.EtransformerId }, etransformer));
        }