Limit acceptable dates in a Parameter

[pleashelp]

I am using CR 9.0. I have a report with parameters of
?StartDate and ?EndDate. I want to limit the acceptable range to 2 months. Is there a way to have a message pop up if the user puts in an end date that is more than 2 months ahead of the start date? I know that I can limit what actually comes up in the report by changing the select statement...but I was hoping to give the user a "heads-up" that a 3 month range (for example) was unacceptable.

Any ideas would be appreciated.

 

[synapsevampire]

Crystal doesn't allow for programmable interaction with users.

You might do this by changing the record selection formula as a result and then unsuppress a warning in a section based on the unacceptable dates, or perhaps use an Event.

-k