Report Wizard - Subreport Tab

JReport allows a report (referred to as the subreport) to be inserted into another report (referred to as the primary report).  There is no difference between the primary report and the subreport.  A subreport can be standalone, i.e. it can be run separately like a normal report or it can also include another subreport.

A link is the way of creating connections between the primary report and the subreport.

Sub Links:

A Sub Link is the relationship between the primary report and the subreport.  You can build up one or more links between a primary report and a subreport.  When you build a link, JReport will match up the records with equal relationships within the subreport and the primary report.  For example, let's say we have a primary report that is focused for customers and the subreport for orders.  When we build the link between them, JReport will build a subreport for each customer.  The subreport will only include those order records for that customer. 

How to create a subreport:

Go to the File menu and click New to create a new report.  Select the Subreport icon in the New tab, in the Choose Report window.  The following window should appear:



Complete all the necessary information in the Data, Query, Display, Group/Sort, Summary, and Graph tabs.

The Subreport window consists of the following main items:

• Position subreport allocation: Allows you to select a proper place in the final report for the subreport.

• Choose a report: You can select an existing report as the primary report with the Browse Button.

• Sub Links tab: Explained above.

• Parameters in subreport tab: Allows you to define values for the subreport parameters on the left by choosing the primary report objects on the right.  Formulas or parameters can be selected from the pull-down lists.