Subreport is blank

[hyma.m]

hi all,

 

iam using iReport1.2.5.

i have created MasterReport with one subreport.

i passed subreport as a parameter in MasterReport.

 

the code as follows.....

 

<subreportParameter name="studentId">

<subreportParameterExpression><![CDATA[$F{StudentId}]]></subreportParameterExpression>

</subreportParameter>

<connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>

<subreportExpression class="net.sf.jasperreports.engine.JasperReport"><![CDATA[$P{subReport_path}]]></subreportExpression>

</subreport>

 

 

The parameter contains the complete path of subreport.

 

when iam trying to run the report through java code ,i get the report without expceptions and errors, but the problem is iam not getting subreport data.the subreport is blank.

wht's problem in that.

 

please help me.

thank you.

[svenn]

You say that you are passing the complete path in

$P{subReport_path}. In that case the Subreport Expession Class should be "java.lang.String" not "net.sf.jasperreports.engine.JasperReport". Your subreport is blank because the main report can not find it.

[hyma.m]

when iam using the Subreport Expressin is "java.lang.String" it gives the following Exception.....

 

In ReportGenDAO.java Could not load object from location : D:FullMVCMagnusMVCMagnus(Academics)buildwebReportsMarketingStudentDropoutSubReport.jasper Could not load object from location : D:FullMVCMagnusMVCMagnus(Academics)buildwebReportsMarketingStudentDropoutSubReport.jasper

 

 

how to solve this..