intuit-partner-platform - 供应商账单与供应商信用/Ipp C#

Question

有没有办法使用 IPP（在 c# 中）来区分账单和供应商信用？现在，当我遍历账单支付（在本例中为支票）上的所有行以显示正在支付的账单时，供应商信用出现但它们看起来与账单没有任何不同（金额为正，没有账单类型等）。

Intuit.Ipp.Data.Qbo.BillPaymentQuery qbBillPaymentQuery = new BillPaymentQuery();
        qbBillPaymentQuery.DocNumber = "143766";
        List<Intuit.Ipp.Data.Qbo.BillPayment> qboBP = qbBillPaymentQuery.ExecuteQuery<Intuit.Ipp.Data.Qbo.BillPayment>(context).ToList<Intuit.Ipp.Data.Qbo.BillPayment>();

        foreach (BillPayment b in qboBP)
        {
            Response.Write("Bill Payment Amount: " + b.Header.TotalAmt + "<BR>");

            foreach (BillPaymentLine x in b.Line)
            {
                Intuit.Ipp.Data.Qbo.BillQuery qbBillQuery = new BillQuery();
                qbBillQuery.ResultsPerPage = 1;
                //qbBillQuery.PageNumber = 1;

                qbBillQuery.TxnId = x.TxnId;
                //qbBillQuery.SpecifyOperatorOption(FilterProperty.DocNumber, FilterOperatorType.EQUALS);


                 DataServices dataServices = new DataServices(context);
                 Bill b2 = new Bill();
                 b2.Id = x.TxnId;
                 Bill b3 = dataServices.FindById(b2);

                 Response.Write(b3.Header.DocNumber + " - " + x.Amount + "<BR>");




            }
        }