Linda,

>I change the file structure to a table to make two fields nullable to eliminate some problems with SaveDataSet. Before making those changes, the SaveRow() method worked correctly. Now I get the error:

Hmmm...I'm not sure why you would be getting this if no new columns were added to the table or their data type was changed. At the point where the prepare is performed it's in the hands of the OLEDB data provider.

Best Regards,