Hi,
As far as I understand your task, you need to create a master-detail report, based on the relation of these tables. You can use the following approach: How to: Create a Master-Detail Report using Detail Report Bands.
After you create a relation between your tables (Master and Detal), so that a Master table's primary key will be linked to a foreign key of its descendant table, make sure you have set the DetailReport.DataMember property using the relation itself, rather than a Detail table's name. Hope this helps you.
Regards,
George (R&D, .NET Team).
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