Not an answer to the question here but FYI - since SAP bought CR several years ago the connection with .NET has basically broken.
Most .NET developers have switched to other reporting tools.
I selected SSRS.


>>>I'm using VFP9 with MySQL database.
>>>
>>>My clients demand online reporting, so I'm thinking to use Crystal Reports.
>>>
>>>Is that possible to run CR within VFP9?
>>
>>Not sure of within, certainly in a way - you can have CR's preview window instantiated in VFP, but that relies on COM and I'm not sure (being five years retired now) whether that's still supported. On my last project they used, IIRC, CR10.
>>
>>The other issue was how to pass the data to the report. CR supported dbfs to a point, and that point is two points: 1) fox2x only, 2) no codepages. The workaround for that was to export whatever cursors were needed into tab delimited or some such, in UTF-8, using strconv() twice (first current codepage to unicode, then Unicode to UTF).
>
>I think it was CR10 that I used as well. I was able to get a VFP screen setup where the users could create their own reports too that used the CR activex's. Not supported anymore and it was a huge pain to get all working properly. It was really cool once it was done tough. Probably better alternatives nowdays though. I think the only reason I was able to pull it off is because the app I did it to was using free tables that were not part of a DBC.