Nested Subreports: How to pass a Parameter to a Sub-Sub-Report?

[t3_chris]

Hi!

As of my Report and Application Design i am in need to use nested SubReports. 

Think of the following structure:

ToplevelReport (My Main Report)
 

SublevelReport1 (Subreport of ToplevelReport)

SublevelReport2 (Subreport of ToplevelReport)

SubSublevelReport1  (Subreport of SublevelReport2)

 

I do want to handover the Subreports to the MainReport by  the Parameter Map, not by file (via $P{SUBREPORT_DIR} . My .jrxml Files define Subreports like this:

<subreportExpression class="net.sf.jasperreports.engine.JasperReport"><![CDATA[$P{SublevelReport2}]]></subreportExpression>

 

How do i pass the Parameter for SubSublevelReport1 to SublevelReport2? I know that i can hand over the both childs of Toplevel Report by a call like this:

 

 

Map<String, Object> parametersMainReport = new HashMap<String, Object>();

parametersMainReport.put("SublevelReport1", compiledSublevelreport1)

parametersMainReport.put("SublevelReport2", compiledSublevelreport2)

JasperPrint jasperPrint = JasperFillManager.fillReport(compiledToplevelreport, parametersMainReport);

But how can i pass SubSublevelReport1 to SublevelReport2 (which is the parent of SubSublevelReport1)?

 

I don't want to pass the Reports as Files ($P{SUBREPORT_DIR}) as my Reports are stored in a SQL Database.

 

Best Regards, 

                          christian

 

[C-Box]

Just also pass your "SubSublevelReport1" as Parameter to the main Report.

There pass it to SubReport2 (in iReport it's at SubReport Properties --> Tab "Subreport other" where you can pass parameters from master to subreports)

And at SubReport2 you can use the $P{SubSublevelReport1} as SubReportExpression!

Don't forget to create the $P{SubSublevelReport1} at each level (Master/SubReport2) in the report parameters.

 

voilá thats it!

works great for me since years! :-)

regards

C-Box

[t3_chris]

Thanks a lot, that did the job.

 

Best Regards,

  christian 

[anshu.thada]

Wow, it works great for me too! Thank you so much for sharing!