>>VFPOLEDB supports "set null off" command. First do an ExecuteNonQuery on the connection (posted full samples with framework1.1 before).
>
>Yes, I thought about that but would like to avoid that at the code level because the data adapter class is generic. I tried it at the connection string level and this doesn't do any effect.

But you have a connection object in your generic class, right? If so you could check the provider and of it's VFPOLEDB then execute it.
Cetin