How to set default date for default parameter?

building reports crystal reports
1

I need to pull a report for previous month whenever I run it

The paramenter is Date_From to Date_to

How do I set default parameter if the user didn’t key in any ?

calvinfoo (BOB member since 2015-05-20)

2

You have to script a record selection formula based on the current date which will by default calculates previous month start and end dates.

You can also make the parameter optional.

BO_Chief :us: (BOB member since 2004-06-06)