No report for parameters chosen

[hayley]

Hi,

I have a web page which displays a Crystal Report through ASP. The report is passed start date and end date parameters. I would like to detect whether there is any data for the parameters chosen and if not, give the user a message and ask them to re-select them. At present, a blank report viewer displays, which wouldn't indicate to an unfamiliar user that their selections were simply not found. Can anyone please help with this?

Thanks!