Changing report grouping programmatically

[Guest]

Hello,
I have a report in VB.NET/Crystal Reports.
I have a criteria form that users select between 2 different types of
grouping (group by category or group by year).
Can I programmatically change the grouping of a single report, based on the
user's selection?
Or do I have to create another report, with different grouping, and call it
when user selects different grouping?
Thanks,
amber

 

[Guest]

Create a "redundant" data column. Use this column for grouping. If you want
to group by something else just put the data that you want to group by into
this column. Works well