public ComHirViewModel GetComHirById(int id)
 {
     var result = new ComHirViewModel
     {
         id = 10,
         WHTaxCorporation = 1.10,
         WHTaxIndividual = 2.20,
         MaximumCommission = 3.00,
         DeductionRate = 4.00,
         EntCodeShow = "00001",
         EntNameShow = "สายใจ สุดใจ",
         HiringChargeIncludeVAT = 3.00,
         PayCommissionTo = "สายหยุด",
         AmountVAT = 4.00,
         AbsorbTax = "01",
         AmountIncludeVAT = 5.00,
         CommissionRate = 6.00,
         MaxRate = 7.00,
         WithHoldTaxAmount = 8.00,
         CommissionTerm = 9.00,
         MaxTerm = 5,
         NetPaid = 10.00,
         CommissionVATNo = 11.00,
         InterestRate = 12.00,
         CommissionVATDate = Convert.ToDateTime("07-06-2015"),
         //Low
         LowInterestRate = 13.00,
         CampaignName = "ชื่อ Campaing"
     };
     return result;
 }
        public Boolean Insert(ComHirViewModel obj)
        {
            if (obj.id != null)
            {
                //Update
            }
            else
            {
                //Insert
            }

            return true;
        }