Nesting Groups in Report Designer
The articles in this section of the Knowledge Base involve working with Groups for display in reports. To learn more about Groups and how to access the Report Designer, see Understanding Groups in the Report Designer. This article explains the process of Nesting Groups.
Report Designer allows for the nesting of groups. For example, Subassemblies can be grouped by material and then sub-grouped by width. To achieve this style of report, place the required number of Group Header bands before the Data band and ideally, the same number of Group Footer bands immediately after it:
It is recommended that there is always an equal number of Group Header and Group Footer bands on a report to avoid unexpected results. When the number of Group Footer bands is greater than the number of Group Header bands, then the outer ones are used, and the inner bands are ignored. When the number of Group Footer bands is less than the number of Group Header bands, then the Group Header bands placed closer to the Data band are output without footers.
Grouping criteria must be specified for each Group Header band. When rendering the report, the Group Header bands are processed in the order in which they appear on a page, working from the top down. The topmost band is processed first, then the one that is placed directly underneath it, and so on. When placing Group Footer bands on a report page, it is important to remember than the last Group Footer band is always associated with the first Group Header band.
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