public static List <BO_CreditSales> GetUnPaidCreditSales(JQueryDataTableParamModel Param)
 {
     using (AprosysAccountingEntities db_aa = new AprosysAccountingEntities())
     {
         List <BO_CreditSales> lst_CreditSales = new List <BO_CreditSales>();
         //Param.Start_Date = BL_Common.GetDatetime().AddDays(-7);
         Param.End_Date = Param.End_Date.AddDays(1);
         var            lst           = db_aa.Credit_GetUnpaidCreditSales(Param.Start_Date, Param.End_Date).ToList();
         var            partiallyPaid = GetAllPartialPayments().GroupBy(x => x.InvoiceNum).ToDictionary(x => x.Key);
         BO_CreditSales obj;
         if (lst != null && lst.Count > 0)
         {
             foreach (var _sales in lst.ToList())
             {
                 obj              = new BO_CreditSales();
                 obj.invoiceNo    = _sales.InvoiceNo;
                 obj.sellDate     = _sales.SalesDate.Value;
                 obj.customerName = _sales.CustomerName;
                 obj.netAmount    = _sales.Amount ?? 0;
                 obj.customerID   = _sales.CustId;
                 if (partiallyPaid.ContainsKey(obj.invoiceNo))
                 {
                     obj.netAmount = obj.netAmount - partiallyPaid[obj.invoiceNo].Sum(x => x.Amount);
                 }
                 if (obj.netAmount > 0)
                 {
                     lst_CreditSales.Add(obj);
                 }
             }
         }
         return(lst_CreditSales.OrderByDescending(x => (Convert.ToInt32(x.invoiceNo.Remove(0, 4)))).ToList());
     }
     //   return lst_CreditSales;
 }