Parameter values passed through URL does not affect the opened report.
Pass parameters from one report in a web part to another in a new page retaining the selected filter values from the web part.
“&Matter_Name=” & Join(Parameters!Matter_Name.Value, “&Matter_Name=”) &
“&Week_Day=” & Join(Parameters!Week_Day.Value, “&Week_Day=”)
The trick is in accessing the report server and avoid report manager. I browsed to the report required, in this case Drillthrough_test_hyperlink.rdl and appended the corresponding URL to the expression instead of using the report managers.
So? Drillthrough to a new report that retains the filtered parameters works as expected using the above expression in the goto URL action of the report. As of now no idea/understanding as to why report manager does not work/pass values.