How can we pass a parameter from main report to subreport in crystal reports XI
Right-click on the subreport object and choose Change SubReport Links, then select how the parameter is to be used by the subreport.
subreport
How to pass main report data source to subreport (JasperReports)?
You can pass datasource via the built-in REPORT_DATA_SOURCE parameter. The example: <subreport> <reportElement x=”261″ y=”25″ width=”200″ height=”100″/> <dataSourceExpression><![CDATA[$P{REPORT_DATA_SOURCE}]]></dataSourceExpression> <subreportExpression><![CDATA[$P{SUBREPORT_DIR} + “subreport.jasper”]]></subreportExpression> </subreport> You can create new instance of datasource based on variable, parameter or field. The sample: <variable name=”HeadingsCollection” class=”java.util.Collection” calculation=”System”> <initialValueExpression><![CDATA[new java.util.ArrayList()]]></initialValueExpression> </variable> … <subreport> <reportElement x=”0″ y=”0″ width=”515″ height=”20″/> <subreportParameter name=”ReportTitle”> <subreportParameterExpression><![CDATA[$P{ReportTitle}]]></subreportParameterExpression> </subreportParameter> … Read more