Hai there..i need help in creating my first crystal report..

I have this main report which need to used subreport.
I have successfully find a way to view the subreport, but unfortunately it views all the data in that table.

What i need is the subreport is able to view the record according to ID based on main report. Instead, it view all the record.

I already try to used change subreport link, but it doesn't work, it still load all the data.
I need to call ID in main report, so that i can view record that using the ID.

Here is the code that i used in calling the subreport:

I'm using C#;

private CTISReportTableAdapters.PTT_ANALYSIS_ATableAdapter dtAnalysisA;
report = new ReportDocument();
mydb = new CTISReport();

//MAIN REPORT
report.Load(Server.MapPath("PTT Preliminary Fault Reportx.rpt"));
        dtCTIS = new CTISReportTableAdapters.PTTPreliminaryReportTableAdapter();
        dtCTIS.Fill(mydb.PTTPreliminaryReport, dateStart, dateEnd);
        report.SetDataSource(mydb);

//SUBREPORT
dtAnalysisA = new CTISReportTableAdapters.PTT_ANALYSIS_ATableAdapter();
        dtAnalysisA.Fill(mydb.PTT_ANALYSIS_A);
        report.Subreports["PTT_Preliminary_AnalysisA.rpt"].SetDataSource(mydb);
CrystalReportViewer1.ReportSource = report;
        CrystalReportViewer1.DataBind();


Thanks in advance. Any idea and help would be much appreciate.