public async Task <ActionResult <SalesOrder> > PostSalesOrderHeader(ModelClass.Model.SalesOrder salesOrderHeader)
        {
            _context.SalesOrder.Add(salesOrderHeader);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("GetSalesOrderHeader", new { id = salesOrderHeader.SalesOrderID }, salesOrderHeader));
        }
        public async Task <IActionResult> PutSalesOrderHeader(int id, ModelClass.Model.SalesOrder salesOrderHeader)
        {
            if (id != salesOrderHeader.SalesOrderID)
            {
                return(BadRequest());
            }

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

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

            return(NoContent());
        }