Subreports and crosstab

[Haloman]

Hi all,

I am creating a report that has two subreports (say A and B). In each subreport, there is a crosstab displayed. I need to display only one of these subreports based on a parameter C selected by the user. Currently, when I do a preview, Crystal displays the input parameter C and also displays the input parameters for subreports A and B. I was wondering if there is a way in crystal where I can just display parameter C on the input screen and then based on the user selection, I can display the input parameters for either subreport A or B.

It would be very helpful if someone can give me some pointers to do this.

Thanks a lot.