public async Task <IActionResult> PutTcirculation(long id, Tcirculation tcirculation)
        {
            if (id != tcirculation.TcirculationId)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }
        public async Task <ActionResult <Tcirculation> > PostTcirculation(Tcirculation tcirculation)
        {
            _context.Tcirculation.Add(tcirculation);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (TcirculationExists(tcirculation.TcirculationId))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(CreatedAtAction("GetTcirculation", new { id = tcirculation.TcirculationId }, tcirculation));
        }