Sub Reports

[lucianc]

xavixxxx
Wrote:

Errors were encountered when compiling report expressions class file: 1. JRBeanCollectionDataSource cannot be resolved or is not a type

Use the qualified class name, i.e. net.sf.jasperreports.engine.data.JRBeanCollectionDataSource.

HTH,

Lucian

[echo74]

i am also having some problem with subreport. i used netbeans for development tool and i execute a report which got a subreport from the application and it worked fine. The problem it when i pass a parameter for the report and no data is being fetched. Can anyone help me with this.

Thanx

[e-sarge]

Another old thread that is incomplete, so I'll try to complete it.

The answer was almost given above, but a few details were not quite correct, which might explain why the original poster did not recognize the solution.

First, your main collection class should look similar to this:

Class EmpDetail {

String empCode;

String empName;

List ProjectDetails empDetails;

}

Notice the list/collection in your main class which will contain the source of data for the sub-report.

Then, in the main report where you define your subreport, set the Data Source Expression property to the following:

new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($F{empDetails})

The reference to field empDetails was key to understanding the solution and was not presented before.