Hi Franco,

You were correct in thinking that SET EXCLUSIVE was ON. I made sure it was set OFF when the non-visual object is created and my problem disappeared!

Gratsi

Mike

>I think your non-visual object open the table in the global datasession (1) that has "set exclusive on" by default.
>So the form could not open it in its datasessionid.
>In your non-visual object you should issue a "set datasession to the_form_datasession_id" before running the query and after restore the set datasession to the datasession before the method calls.
>
>Franco