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Multiple instance of a datasource


Patryyyck

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Hello,

 

I've a report with 2 subreports. I want to use the same CVS datasource for all the reports. But when i did that, the 1rst subreport is ok but the 2nd has no data and the main report is cut. It seems that all the datasource has been read. Is it possible to have multiple instances of the same datasource?

If yes, how?

 

Thanks for your help.

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Hi,

 

You have to make sure that the two subreports use TWO different instances of a JRCsvDataSource class that wrap the SAME CSV file.

If you use the same instance, the first subreport "consumes" the data by moving the record pointer after the last record, from where the second subreport takes it.

 

I hope this helps.

Teodor

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this is really not a replay for ur prb but myself also have the same issue. In my case also i want to multiple data source, i am using JRBeanCollectionDataSource.

 

(JRBeanCollectionDataSource ds = new JRBeanCollectionDataSource(reportDataList);

 

JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, ds); ) simply this code to set data source and fill the report with data sorce. Please help me, how to add another JRBeanCollectionDataSource object to this, or anyother way to add another data source.

thnkx

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