// POST api/SalesReceivePayment
        public HttpResponseMessage PostSalesReceivePayment(SalesReceivePayment salesreceivepayment)
        {
            if (ModelState.IsValid)
            {
                ControlVoucher controlvoucher = new ControlVoucher();
                string CustomCode = "SP-" + DateTime.Now.ToString("yyyyMMdd");
                long CustomerCOAID =(long) db.Collaborators.Where(c => c.CollaboratorID == salesreceivepayment.CustomerID).Select(c => c.CustomerCOAID).FirstOrDefault();
                salesreceivepayment.VoucherNO= controlvoucher.CreateVoucher((long)salesreceivepayment.DepositTo, CustomerCOAID, (decimal)salesreceivepayment.PaymentTotal, (long)1, (DateTime)salesreceivepayment.Date);
                int? MaxCode = Convert.ToInt32((db.SalesReceivePayments.Where(r => r.SalesReceivePaymentCode.StartsWith(CustomCode)).Select(r => r.SalesReceivePaymentCode.Substring(CustomCode.Length, 4)).ToList()).Max());
                string SPCode = CustomCode + ((MaxCode + 1).ToString()).PadLeft(4, '0');
                salesreceivepayment.SalesReceivePaymentCode = SPCode;
                salesreceivepayment.Date = DateTime.Now.ToLocalTime();
                db.SalesReceivePayments.Add(salesreceivepayment);
                db.SaveChanges();

                HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, salesreceivepayment);
                response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = salesreceivepayment.SalesReceivePaymentID }));
                return response;
            }
            else
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }
        }
        // PUT api/SalesReceivePayment/5
        public HttpResponseMessage PutSalesReceivePayment(long id, SalesReceivePayment salesreceivepayment)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            if (id != salesreceivepayment.SalesReceivePaymentID)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }
            salesreceivepayment.PaymentMethod = null;
            salesreceivepayment.Collaborator = null;
            salesreceivepayment.ProcesStatus = null;
            db.Entry(salesreceivepayment).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException ex)
            {
                return Request.CreateErrorResponse(HttpStatusCode.NotFound, ex);
            }

            return Request.CreateResponse(HttpStatusCode.OK);
        }