OK, I have tried about every type of filtering I can do, and can't get this to work.

I've put a filter on the Dataset, but get an error on that, that I cannot use Agregate functions on dataset filters or data region filters.

I have added a filter on the GroupBy, and the Tablix table, but do not get errors, it just does not return correct values. It does not filter it at all.

FYI, I am using SSRS2008. Can you give me an exact example or demo?

thanks

Charles