How to filter parameter created in Crystal?

I created two parameters in Crystal, one is department and one is category and have discrete values for each so user can select from. What can I do so that after I choose a department, then when I select category only those categories from the department which I chose will show up in the dropdown list. THANKS!
qinyanAsked:
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bdreed35Commented:
This funcitonality was not included with the Crystal Reports Designer until version XI.
What version are you using?
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qinyanAuthor Commented:
Crystal 9
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qinyanAuthor Commented:
So is there other way to work around?
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bdreed35Commented:
I know that Millet Software's Datalink Viewer offers a workaround: http://www.milletsoftware.com/DataLink_Viewer.htm
Using it to view your reports would give you that capability.
You could also build your own front end and implement it.
Otherwise, the simplest way would be to upgrade to XI.
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mlmccCommented:
Agree.  An application or third-party add-n is required for CR9.

mlmcc
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qinyanAuthor Commented:
Thank you!
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