Question

我想从客户表到账单表中选择余额（流场）记录。我有一个Customer表和一个BillPros表。客户表中的余额是流场。

//Customer on Variable Band Billing
Customers.RESET;
Customers.SETCURRENTKEY(Customers."No.");
Customers.SETFILTER(Customers."No.",'%1',MeterR."Customer Number");
Customers.SETFILTER(Customers."Customer Posting 
         Group",'%1',Surcharge."Customer Posting Group");
Customers.CALCFIELDS("Balance (LCY)");
Bal := Customers."Balance (LCY)";

IF Customers.FIND('-')THEN 

   //Post Metre Reading;
      PostReading.RESET;
      PostReading.Date := MeterR.Period;
      PostReading.MetreID :=MeterR."Metre ID";
      PostReading."Last Reading" := MeterR."Metre Reading";
      PostReading.INSERT;



      //Bill Info Process
      TotalAmount:=0;
        BillPros.INIT;
        BillPros."Customer No." := MeterR."Customer Number";
        BillPros.Consumption := TotalReading;
        BillPros.Rate := Bands."Rate Amount";
        BillPros."Invoice No." := MeterR."Invoice Number";
        BillPros.Amount := TotalReading*Bands."Rate Amount";


        BillPros.Balance := Bal;

Answer 1

你的代码错了。您应该在FIND（' - '）之后调用CALCFIELDS。在此之前，您“没有”实际的客户记录。而且你不需要Bal变量。你可以写BillPros.Balance：= Customer。“Balance（LCY）”;

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