How to Query Two Tables in Crystal Reports Using VB.NET and C#?

Querying Two Tables in Crystal Reports

To utilize a custom query in Crystal Reports, navigate to the ODBC connection created in the Database Expert tool. Locate the "Command Text" field and enter your SQL query.

The syntax for the provided query is as follows:

SELECT ts.`SCHEDIDNO`,
       ts.`DAYNAME`,
       DATE_FORMAT(ts.`TIMESTART`, '%h:%i %p') as TIMESTART,
       DATE_FORMAT(ts.`TIMEEND`, '%h:%i %p') as TIMEEND,
       ts.`GRADELEVEL`,
       ts.`SECTIONNAME`,
       ts.`SUBJECTNAME`,
       ts.`FACFULLNAME`,
       ts.`ROOMNAME`,
       tf.`FACFULLNAME` as PERSONNEL,
       tf.`DEPARTMENT`,
       tse.`Adviser`
FROM `tblschedule` ts,
     `tblfaculty` tf,
      `tblsection` tse
WHERE ts.`GRADELEVEL` = " & lblgrade.Text & "
    AND ts.`SECTIONNAME` = '" & lblsect.Text & "'
    AND ts.`DEPARTMENTNAME` = tf.`DEPARTMENT`
    AND tf.`ADMINISTRATOR` = 1
    AND tse.`SECTIONNAME` = '" & lblsect.Text & "'

In Visual Basic.NET, you can utilize the following code to incorporate the query into your report:

Private CRPT As New ReportDocument
Private APPPATH As String
Private PARAM As New ParameterFields
Public PARAM_DESC As New ParameterDiscreteValue

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

    APPPATH = Application.StartupPath & "\REPORT\sample.rpt"
    CRPT.Load(APPPATH)
    Me.CrystalReportViewer1.ReportSource = CRPT

    PARAM = CRPT.ParameterFields

    PARAM_DESC.Value = Format(DatePicker1.Value, "yyyyMMdd")
    PARAM("DATEP").CurrentValues.Clear()
    PARAM("DATEP").CurrentValues.Add(PARAM_DESC)
    Me.CrystalReportViewer1.Refresh()
End Sub

In C#, use the following code:

CRPT = new ReportDocument();
APPPATH = Environment.CurrentDirectory + "Sample.rpt";
CRPT.Load(APPPATH);
Report_Viewer.Refresh();
CRPT.SetParameterValue("syear", Servercls.year);

CRPT.SetParameterValue("smonth", Servercls.month);
CRPT.SetParameterValue("sday", Servercls.day);
CRPT.SetParameterValue("datevalue", Servercls.Datevalue);
Report_Viewer.ReportSource = CRPT;

sc.configureCrystalReport();
Report_Viewer.Refresh();

Remember to ensure that the parameter names in your Crystal Report match those in your code behind.

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