I use Jasper reports 6.17 and I made a list in Jasper Studio.
The list has only 2 items named "test1" and "test2" but only one is displayed and I don't know why. The resulting PDF displays only "test2", why is "test1" missing? If I add 10 items the first line will be missing.
The jrxml file is:
<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="LIST" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="e7ee8129-93f1-4ca4-ba39-4b3d41bc1dd1">
<subDataset name="Item" uuid="e9567b90-2de8-4e93-bad6-f67f0139e348">
<property name="com.jaspersoft.studio.data.defaultdataadapter" value="One Empty Record"/>
<queryString>
<![CDATA[]]>
</queryString>
<field name="name" class="java.lang.String"/>
</subDataset>
<queryString>
<![CDATA[]]>
</queryString>
<detail>
<band height="125" splitType="Stretch">
<componentElement>
<reportElement x="178" y="31" width="100" height="30" uuid="3c38bb5e-a468-491b-8a3c-e04104fd93fe"/>
<jr:list xmlns:jr="http://jasperreports.sourceforge.net/jasperreports/components" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports/components http://jasperreports.sourceforge.net/xsd/components.xsd">
<datasetRun subDataset="Item" uuid="16e7dfb2-6696-4eb8-98a9-c590e4c9fc28">
<dataSourceExpression><![CDATA[$P{REPORT_DATA_SOURCE}]]></dataSourceExpression>
</datasetRun>
<jr:listContents height="30" width="100">
<textField>
<reportElement x="0" y="0" width="100" height="30" uuid="2ff6723b-b461-420c-b233-ac3963d3b41b"/>
<textFieldExpression><![CDATA[$F{name}]]></textFieldExpression>
</textField>
</jr:listContents>
</jr:list>
</componentElement>
</band>
</detail>
</jasperReport>
And the java files are:
public class JasperTestList2 {
public static void main(String[] args) {
try {
List<Item> its = new ArrayList<>();
Item i1 = new Item();
i1.setName("test1");
its.add(i1);
Item i2 = new Item();
i2.setName("test2");
its.add(i2);
JRBeanCollectionDataSource itemsJRBean = new JRBeanCollectionDataSource(its);
JasperPrint jasperPrint = JasperFillManager.fillReport("JasperReports/LIST.jasper", null, itemsJRBean);
OutputStream outputStream = new FileOutputStream(new File("JasperList.pdf"));
JasperExportManager.exportReportToPdfStream(jasperPrint, outputStream);
} catch (JRException | FileNotFoundException ex) {
Logger.getLogger(JasperTestList2.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public class Item {
private String name;
public void setName(String name){this.name = name;}
public String getName() {return name;}
}
This isn't a great answer, I get it, but I can't format it in comments.
datasource = [
Item1, <-- detail band next()
Item2 <-- list datasource next()
]
parameter(item) = [
Item1, <-- list datasource next()
Item2 <-- list datasource next()
],
datasource =
datasource = [
items = [ <-- main datasource next()
item1, <-- list datasource next()
item2 <-- list datasource next()
]
Obviously you need to work out the objects for your JRBeanCollectionDatasource
but you want them to look like that.
public class ReportItem {
private List<String> items;
}
Then building out a List<ReportItem>
that you pass into the Datasource would work.