Passing values to subreport that has many records?

Question

I have a report with a subreport in it and that subreport is a bill that includes things like name, address, etc. My report will run the subreport many times for each bill that comes up.
I am needing to pass values to text objects in these individual subreports that is information that is obtained in the code. My code works fine when this subreport is ran on it's own but I'm having trouble figuring out how to change the code up to put the information into individual subreports. Here is a simple example of some of my code:
using (PrintBills reportPrintBills = new PrintBills())
    using (CrystalReportBill reportBill = new CrystalReportBill())
        CrystalDecisions.CrystalReports.Engine.TextObject lblBalanceDue = ((CrystalDecisions.CrystalReports.Engine.TextObject)reportBill.Summary.ReportObjects["lblBalanceDue"]);
        CrystalDecisions.CrystalReports.Engine.TextObject lblName = ((CrystalDecisions.CrystalReports.Engine.TextObject)reportBill.Summary.ReportObjects["lblName"]);
        DataSet ds = new DataSet();
        GetBills(ref ds, "Bills", date);
        DataView dvID = new DataView(ds.Tables["Bills"]);
        num = 0;
        foreach (DataRowView rowID in dvID)
            GetBioInfo(ref ds, "BioData", id);
            DataRow row = ds.Tables["BioData"].Rows[num];
            lblName.Text = row["Stu_Name"].ToString();
            lblBalanceDue.Text = String.Format("{0:C}", row["Amount_Due"]);
            num++;
    reportPrintBills.SetParameterValue("@tblMonth", date);
    reportPrintBills.SetParameterValue("@begdate", strBegdate);
    reportPrintBills.SetParameterValue("@enddate", strEnddate);
    //Export to PDF code here
reportBill does not display the values obviously. Somehow I need to set that reportBill is a subreport of reportPrintBills in the code so that each record will recognize the TextObject values that I am sending to them.
Another solution I've tried is adding parameter fields to reportBill and reportPrintBills and linking them up and then passing values like so:
foreach (DataRowView rowCWID in dvCWID)
    GetBioInfo(ref ds, "BioData", id);
    DataRow row = ds.Tables["BioData"].Rows[num];
    name = row["Stu_Name"].ToString();
    amtDue = String.Format("{0:C}", row["Amount_Due"]);
    reportPrintBills.SetParameterValue("@strName", name);
    reportPrintBills.SetParameterValue("@strAmtDue", amtDue);
    num++;
But the value stays the same in all of the subreports rather than changing with each pass through.

Answer 1

Open the report up in the Designer and Click on Edit, Subreport Links. Likely what you can do is use Shared Variables to pass values from the main report to the subreport.
You need to do this in the report first. If you are using RAS then you can at runtime. If RAS is not available to you then no way in code.
See these samples:
Root Page
http://wiki.sdn.sap.com/wiki/display/BOBJ/BusinessIntelligence%28BusinessObjects%29+Home
Enterprise Samples (including managed and unmanaged ras)
http://wiki.sdn.sap.com/wiki/display/BOBJ/BusinessObjectsSDKSampleApplications
Non-Enterprise Samples
http://wiki.sdn.sap.com/wiki/display/BOBJ/CrystalReportsSDKSampleApplications
Exporting Samples (RAS)
http://wiki.sdn.sap.com/wiki/display/BOBJ/NETRASSDK+Samples#NETRASSDKSamples-Exporting%2FPrinting
Also refer to the DSK help files for the Engine or RAS and search on the subreportcontroller.
If you are using RAS I'll move your post to the SDK forum.
Thank you
Don