This can be done, but only for a logical parameter - that is, you can only have True / False, and not a custom list of radio parameters.
Add a parameter to your Boolean report. “Available Values” should be set to “Not Query” - but remember to leave the grid of values completely empty.
In the "Default Values" section, select "Do not prompt again", but in the expression field, enter "True" or "False" (that is, depends on your desired default value).
- True/False.
, BIDS - Click Builder .
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