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Subreport in the designer

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Creating a subreport in the designer

Subreports suit tabular data or lists and can use their own data source. Here we build a subreport and test it together with the main report in the designer (example: order with order positions).

1. Create the form

Analogous to the main report. For the subreport:

• Remove all bands except Column Header and one Detail band.
• Adjust the detail band width to the embedding location (525 px in the example).
• Remove all margins so the subreport blends in seamlessly.

Subreport form in the designer.

2. Create the data source

Same database connection as the main report; procedure analogous to creating a data source in the designer.

Hauptreport

3. Insert fields & create .jasper

• Drag&drop fields into the detail band (automatically creates static text in the column band).
• Format number fields, e.g. #,##0.00.
• Run the preview – on success the designer creates a <name>.jasper.

Fields in the subreport.

4. Embed the subreport in the main report

In the main form choose the Subreport component from the palette, select Use an existing report in the wizard and load the created .jasper. Then choose the data source and place the subreport.

Subreport wizard in the main report.

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