How to manually insert page break in JasperReports on basis of certain conditions

问题

I want to check if else condition in subreports for page break like.

I am printing customername in pdf report using jasper template, i need to break the page if the customer name is different and the new customer name should be printed in new page. How to do that?

回答1:

A couple of different possibilities:

Page Break

1. Add a Page Break
2. Change its PrintWhenExpression

Report Group

1. Right-click on the report name (in the Report Inspector)
2. Select Add Report Group
3. Provide a Group Name (e.g., UniqueCustomer)
4. Set the Group by value to the customername field
5. Click Finish

来源：https://stackoverflow.com/questions/3659326/how-to-manually-insert-page-break-in-jasperreports-on-basis-of-certain-condition