Created master-detail reports using, https://docs.telerik.com/reporting/designing-reports-master-detail#configure-the-report-parameter-and-filter. So both the master page and the detail page each have data sources, with the detail page data source having a parameter from parent to filter its data.
In the detail report, when I drag-drop an attribute from its data source to a textbox it's fine.
But when I insert a table and bind the data source to the table, the table's data binding itself works fine, but the table itself is being repeated as many times as there are rows in the data source, each having as many rows as in the data source.
If I remove the data source from the table, then no rows show... so doesn't work...
I may be doing something wrong... what..?