The PageExec function operates with data in a given page. The approach discussed in Carryover, page sum on top of next page
includes custom functions written in code, that can be adjusted based on your custom requirements.
If the sub report contains only a Table item, you can ease the design by placing the item directly in the main report. Table/List/Crosstab items have their own DataSource properties which allows them to display data different than the main report's one. To filter data with the main report's fields, you can use the ReportItem.Parent.DataObject
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