Urgent help required - linked subreport keeps asking for parameter value

Question

Greetings,
I have developed a report in the Crystal Reports bundled with Visual Studio 2005. The data is obtained from a stored procedure. One of the fields in the result set is named "Id".
I have embedded a subreport in the details row of the main report. The subreport also gets its information from a stored procedure. This stored procedure has one parameter named "OpportunityId". This field is linked to the field named "Id" above. the subreport has been set to supress blank subreports.
In the development environment and running the executable of the application on the development machine the report works perfectly. The subreport displays as it should and all is well.
When I deploy the report onto user machines where they have the crystal runtime installed, the report keeps asking for a parameter value for the subreport.
I cannot get this to stop happening.
This report is urgently required. PLEASE could someone help me out here.
I am at my wits end.
I have attached a zipe file containing the following:
- the two stored procedure
- the rpt file
- a sample report
- a screen showing the report having just been generated
Thanks in advance,
Robert Lancaster

Answer 1

<p>Hi Robert,</p><p>I see your report template and stored procedures. All seems to be ok. <br /></p><p>The most important is to assign the report parameters for all linked subreports (only one in your case).</p><p> </p><p>Try this (in C#, in VB.NET the code are very similary): </p><p>ReportDocument report = new ReportDocument(@"TopFortyReport.rpt");</p><p>AssignParameters(report, paramCollection);</p><p>// and now assign parameters to all linked subreports </p><p>foreach( CrystalDecisions.CrystalReports.Engine.Section section in report.ReportDefinition.Sections)</p><p>{</p><p>    foreach (CrystalDecisions.CrystalReports.Engine.ReportObject reportObject in section.ReportObjects)<br />    {</p><p>        if (reportObject.Kind == ReportObjectKind.SubreportObject) </p><p>        {</p><p>            SubreportObject subReport = (SubreportObject)reportObject;</p><p>            ReportDocument subDocument = subReport.OpenSubreport(subReport.SubreportName);                                               AssignParameters(subDocument, paramsCollection);</p><p>        }</p><p>} </p><p> </p><p>void AssignParameters(ReportDocument report, object[] paramsCollection)</p><p>{</p><p>    int nParams = paramsCollection.Length;</p><p>    for (int iParamIndex = 0; iParamIndex < nParams; iParamIndex++)</p><p>    {</p><p>        if (report.DataDefinition.ParameterFields[iParamIndex].IsLinked())</p><p>            continue;</p><p>        report.SetParameterValue(iParamIndex, paramsCollection[iParamIndex]);</p><p>    }</p><p>}</p><p> </p><p> </p>