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Generating Subreports


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Well, I've searched all over the forums and I can't find the solution to my problem.


I have a master report that uses a subreport. If I run the subreport by itself, I get a nice pdf report. However, when I try to include it in the master report, a get a blank page.


I think the jrxml files are ok, maybe my error is in the java code. Here's what I've got.


//Getting subreport



JasperReport subreport = (JasperReport)JRLoader.loadObject("reports/jrxml/SubreportDemo.jasper");


//Preparing parameters

Map parameters = new HashMap();

parameters.put("SubreportDemo", subreport);


//Getting master-report


JasperRunManager.runReportToPdfFile("reports/jrxml/MasterReportDemo.jasper", parameters, connection);


Does the subreport need to be filled before it is passed to the master report as a parameter? Or does the master report do all the filling?

(I am using iReport to generate the jrxml files)

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