http://help.sap.com/saphelp_slc/helpdata/en/27/c9ee1951fc4fb9ac322ac7e6fa7372/content.htm
If I understood your question correctly.
Have a look in the link above.
It is possible to use Crystal Reports from ALV.
Tammy Powlas also has some good guides on how to do this.
The ABAP however is not covered that much.
Best Regards
Ingrid