Passing different (multi-) values for parameters to drill-through report, based on clicked subtotal in main report

Question

In Report Builder 3.0, I have made a main report in which the user can filter the underlying dataset using three parameters (all multi-value). The report shows totals grouped by these three parameters, as well as a grand total. What I want is to click
on a total, which then opens the drill-through report for the corresponding records. I have achieved this for the grand total; the action in the corresponding text box passes all selected values of the parameters to the drill-through report.
What I cannot figure out is how to make this work right when clicking on a subtotal. When I use the same expression as for the grand total, the same values for the parameters are passed, instead of the subset that apply to the corresponding text box in the
main report. I expected this to work, because Report Builder /does/ correctly calculate the SUMs for the different levels, even though the expressions are the same.
My question is: how do I pass different drill-through (multi-) values for parameters, corresponding to the respective subtotals in the main report?
(FYI: I am using Microsoft SQL Server 2008 R2 and Report Builder 3.0 .)

Answer 1

Hello Katherine,
Thanks once more for your quick reply.
I was aware of the textbox action "Go to report", and how to pass parameters in general. My question concerned how to determine the scope of the passed multi-value parameters (to the values that apply to the respective group/subtotal). The article you linked
to is informative, but not a solution to my problem.
A colleague of mine came up with a pragmatic solution: instead of trying to determine the scope of the parameter values, now I "look to the left in the results table". The two screenshots below should illustrate this. (Screenshots are in Dutch. Specific information
is pixelated.)
Unfortunately, I am not able to post images. Once my account is verified, I will edit them in. For now, I hope the text speaks for itself enough.
[Screenshot: Drill-through parameters - 01: Report Builder tablix with subtotals]
[Screenshot: Drill-through parameters - 02: Textbox properties (selected in screenshot 01) - Action - Go to report]
The first screenshot shows the tablix in the Report Builder. The second screenshot shows the properties of the textbox selected in the first.
Notice that I do not pass parameters for the first two columns, but the actual values. I only pass the parameter (containing /all/ user-selected values) for the third column. In the textbox below the selected one, I pass the actual values for the first column,
and parameters for the last two. In the textbox above the selected one, I pass the actual values for all three columns.
The only (cosmetic) flaw this approach has is that in the drill-through report, the list of selected parameters might show values that do not occur in the (corresponding part of the) results, and only for those parameters for which the main report passes (all
user-selected) parameter values, and not the actual values in the results. The results are correct, though.
If there is a way to directly determine the scope of multi-value parameters for passing to a drill-through report, I would still like know. But for now, this seems to work.