When creating a new report with grouping records, be sure you choose correct sorting in your dataset. At the last step of the wizard, choose Grouping Records page and specify grouping expression(s). Grouping expression is calculated each time the new record of data source passed. When the result of the expression is changed, the current group ends and a new one begins. When the group starts, Group Header band is outputted (if visible). When the group ends, Group Footer band is outputted (if visible).
To modify an existing report, choose Report Builder page. In the report tree, select Report to see the report properties. Specify grouping expression (call Expression editor (button '...'), select needed field from the field list and click Add, and then click OK).
Check groping sections in report tree to make them visible. Place desired objects on them.
An example of the report template with grouping is included in the application package (file groups.dtt).
See also
