I am having a problem in passing date parameters to dub reports in crystal reports.

I am having a main report not having any date fields. I have created a parameter field for the date range as ?bdate and ?edate in my main report.
In the subreport the date field is present. now I need to pass the date parameter values from main report to sub report where the date field is present and fetch the date values for the date range.

Please help me on this... this is an urgent issue.

Thanks in advance,