>I've changed datasessions and not had issues.
>
>
>>To change to datasession within a session - especially a form - has nice side effects. :)
>>
>>And for that, you can only ask within the app. :D

I lost all controlsources.

But possibly this is old from VFP 5.0 up and has changed.

Update:
This means SET DATASESSION, not the second parameter of AUSED().

I normaly need CURSORGETPROP(), FILTER() and the likes. IOW The error logger is the only one doing such stuff. :)