Hi :) I'm struggling to find the right way to pass data to a subreport throug JAVA. Could someone help me? This is the snippet of my code and report. I tried to pass a parameter in the Jasper.FIllReport function, but it doesn't work at all.. Java code: URL url = new URL(repofileurl); URLConnection connection = url.openConnection(); InputStream reportFile = connection.getInputStream(); JasperReport jasperReport = JasperCompileManager.compileReport(reportFile); if (jrSet.getSubReportFileName() != null) { for (String filename : jrSet.getSubReportFileName()){ String subrepofileurl = REPO_TEMPLATE_URL+filename; URL suburl = new URL(subrepofileurl); URLConnection subconn = suburl.openConnection(); InputStream subtemp = subconn.getInputStream(); JasperReport jasperSubReport = JasperCompileManager.compileReport(subtemp); Collection<Object> testSubData = new ArrayList<>(); testSubData.add(new jasperTest()); JRBeanCollectionDataSource data = new JRBeanCollectionDataSource(testSubData); jrSet.getParameters().put("yourSubList", data); jrSet.getParameters().put("subreportParameter", jasperSubReport); } } JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, jrSet.getParameters(),jrSet.getDataSource());[/code] Report (subreport part): <subreport> <reportElement x="160" y="4" width="392" height="83" uuid="25651434-2f73-4650-8102-20ad1d7b5e69"/> <subreportParameter name="yourSubList"> <subreportParameterExpression> <![CDATA[$P{yourSubList}]]> </subreportParameterExpression> </subreportParameter> <subreportParameter name="subreportParameter"> <subreportParameterExpression> <![CDATA[$P{subreportParameter}]]> </subreportParameterExpression> </subreportParameter> <subreportExpression> <![CDATA[$P{subreportParameter}]]> </subreportExpression>[/code]SubReport (filed to fill, but I don't know how to link the parameters): <textField> <reportElement x="10" y="6" width="100" height="30" uuid="2ca814dc-d485-41ab-9216-d5b5fbb2082b"/> <textFieldExpression><![CDATA[$P{Parameter1}]]></textFieldExpression> </textField> <textField> <reportElement x="160" y="10" width="100" height="30" uuid="0d13edc1-03b1-4e99-b654-8c463dc07a04"/> <textFieldExpression><![CDATA[$F{partenza}]]></textFieldExpression> </textField>[/code]I will be really grateful if someone could help me (or pointing in the right direction! I googled for weeks...)
