The NavigateToReportAction causes a Target report to be opened in the same viewer as the main report. The action is not supported in PDF files - PDF: Interactivity.
If you use a SubReport item, the the Sub report is displayed as a content in the main report.
Please check the list with available actions and if the Hyperlink Action
(opens the set URL in the browser window), Bookmark Action
(for navigation in the same report's content, related to Document Map
) or TOC
features suits you better.
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