We just migrated from .net 1.1 to .net 4.0, using Xceed Grid 2.2 and most parts worked quite well. We only had a problem with SmartUI, and in the end we migrated to XCeed Grid 3.9, but I guess your controls should work fine. And normally you also have some older frameworks installed on the clients so that should not be a problem.
Imported from legacy forums. Posted by Kai (had 1083 views)