Group footers output only
Usually, in reports with grouping, either groups only or headers and footers concurrently are used. But what to do if in your report you need to make group footers output only without group headers?
For creation report with grouping it is necessary to use the GroupHeader band. But we do not want to outtype it after rendering. In this case you should set the GroupHeader band's height in 0. The report will be rendered successfully and the GroupHeader band will not be outtyped because of its height is 0.
The GroupHeader band with the height equal in 0
