public virtual List <doBillingDetail> GetBillingDetailForCombine(string billingTargetCode, string billingTypeCode, string c_CURRENCY_LOCAL, string c_CURRENCY_US, string c_CURRENCY)
        {
            BLDataEntities context = new BLDataEntities();

            return(context.GetBillingDetailForCombine(billingTargetCode, billingTypeCode, c_CURRENCY_LOCAL, c_CURRENCY_US, c_CURRENCY).ToList());
        }