i create a report (here called A) filled with only parameters (no database query) and successfully test it.
In another report (here called B) i create a query on a database that return multiple lines.
If a use the returned fields in the detail the report B is filled with all the informations retrived in a tabular format.
When i try to use the report A as a subreport of B and pass to its parameters the fields of the query the preview shows only white pages (the exact number of records).
In the properties of the subreport i create a list whit the same names used in report B and associate as expression the field of report A.
Any help or suggestion will be appreciated.