[RESOLVED] Error in setting Parameter for SubReport?

I'm using CR 11 and have a report in which it has 3 subreports. I'm calling the main report from a VB.Net app. The 3 subreports have 2 parameters each. They also have a Stored Procedure in each of them. lHowever, I'm getting an "Object reference not set to an instance of an object" error on the highlighted line of code. I don't think I've set my parameters up correctly for the subreports. I don't know this for sure because this is the first time I've ever used parameters in a subreport. Any ideas?

Code:

---

    Public Function PrintGroupActivitySummary(ByVal strUserID As String, _
                                              ByVal intGroupID As Integer)
        Try
            Dim crDoc As New rptGroupActivitySummary
            Dim crSub1 As New ReportDocument
            Dim crSub2 As New ReportDocument
            Dim crSub3 As New ReportDocument

            With crConnectionInfo
                .ServerName = "HERCULES"
                .DatabaseName = "Drip"
                .UserID = "CRVBNETSQL"
                .Password = "SC1800fuels"
                .IntegratedSecurity = True
            End With

            crSub1 = crDoc.OpenSubreport("IRStatus.rpt")
            crSub2 = crDoc.OpenSubreport("Over3Days.rpt")
            crSub3 = crDoc.OpenSubreport("OutstandingIR.rpt")

            crSub1.SetParameterValue("@userID", strUserID)
            crSub1.SetParameterValue("@groupID", intGroupID)

            crSub2.SetParameterValue("@userID", strUserID)
            crSub2SetParameterValue("@groupID", intGroupID)

            crSub3.SetParameterValue("@userID", strUserID)
            crSub3.SetParameterValue("@groupID", intGroupID)

            PrintGroupActivitySummary = crDoc

        Catch ex As Exception
            rptErr.clsProcedure = "PrintGroupActivitySummary()"
            rptErr.clsMsg = ex.Message
            rptErr.WriteToTextFile(ErrorDirectory, "DRIP-ErrorLog.txt")
        End Try
    End Function

---

I'm gettin' desparate folks.

Thanks,

Any ideas? I'm really cuttin' this to the bone...

You do not have to pass the parameters that many times if they are all the same value. If you go into crystal reports and right click on your sub report you can link the parameters from the main report to the sub report parameter fields.

Besoup,

The main report does not have any parameters. It's just the 3 subreports that have identical params.

ok then you can just add parameter fields to the main report and link them to your subs....

Why do I keep getting prompted in my VB.Net app to enter the paramater values then?

If you have them linked properly in CR then all you would need is this code:

vb Code:

Public Function PrintGroupActivitySummary(ByVal strUserID As String, _
                                              ByVal intGroupID As Integer)
        Try
            Dim crDoc As New rptGroupActivitySummary
 
 
            With crConnectionInfo
                .ServerName = "HERCULES"
                .DatabaseName = "Drip"
                .UserID = "CRVBNETSQL"
                .Password = "SC1800fuels"
                .IntegratedSecurity = True
            End With
 
            crDoc.SetParameterValue("@userID", strUserID)
            crDoc.SetParameterValue("@groupID", intGroupID)
 
 
            PrintGroupActivitySummary = crDoc
 
        Catch ex As Exception
            rptErr.clsProcedure = "PrintGroupActivitySummary()"
            rptErr.clsMsg = ex.Message
            rptErr.WriteToTextFile(ErrorDirectory, "DRIP-ErrorLog.txt")
        End Try
    End Function

Using your exact code....I'm still getting prompted 3 times (1 for each subreport) to enter 2 parameter values.

can you post a screenshot of how one of your links look?

Here is a screen shot. I am trying to link the subreport to the main report parameters...

change the bottom selection on the left to ?@groupid without the prefix.

didn't work....still prompted me as well as the attached Error.

may seem like a dumb question but did you change them for all 3 sub reports?

Not a dumb question!!! But yes...I did.

Somehow, I've resolved it. Don't know exactly what I did except for what Besoup suggested and by updating the SP's.

The same problem is back and I don't know what I did.

How do I reopen this thread?