SSRS 2008: Passing Parameters to linked report

Question

I have a report table with all the combinations of dimensions as generated by the parameters set by the user. Each row contains 1 combination and a link to another report with charts. How do I pass that combination of parameters/dimensions to that other report?

In the row, I have a textbox Action which has a "Go to report" hyperlink. In the main report. I see an option "Use these parameters to run the report" which I fill out with the similarly named parameters on both reports.

On the linked report, the user should not have to pick options from that set of parameters again. Setting the report parameters to internal, hidden with blank prompt (a single space), visible with blank prompt (a single space), and putting a (Null) default value still gives: "The report parameter is read-only and cannot be modified. (rsReadOnlyReportParameter)"

What gives? How should the parameters be configured on either side so the combination of parameters are passed to the linked report?

Answer 1

If it is truly a linked report, then you should be able to hide the parameter in the linked report properties.

If it's a drill through report (more likely), then just set the parameter to hidden in designer. Internal means it is not exposed at all:

Setting the Hidden and Internal options provides different levels of visibility. You can hide the parameter on the parameter input area of the published report, yet set values for it on a report URL [My text: this is what drill through does] or in a subscription definition. If you set a parameter to Internal, it is not exposed in any way except in the report definition.

Answer 2

The real solution to the real problem probably lies somewhere else, but just recreating the report item from scratch instead of using the converted (from SSRS 2005 to SSRS 2008) report item solved the problem described above. The drillthrough report should have the parameter hidden.

Answer 3

There may be a bug in Report Designer - I added an Internal parameter and this gave me the "The report parameter is read-only and cannot be modified. (rsReadOnlyReportParameter)" error; changing parameter's visibility to Hidden or even Visible had no effect, still the same error occurred.

Deleting and creating the same parameter (this time with visibility set to Hidden) solved the problem.