I'm running SSRS 2008, and I'm wondering if it is possible to change a report parameter property based on user input in another report parameter. What I need to do is to make report parameter #2 a required parameter if a specific value is selected in parameter #1. Parameter #2 should be optional under all other scenario. Thanks in advance.

Hi Alex, We can't change the parameter properties dynamically in the current reporting services. If you have any concern about this, submit a feedback at https://connect.microsoft.com/SQLServer/Feedback and hope microsoft enable this feature in the next release. thanks, Jerry