>>You probably want to filter the records with D from the display. May be add a filtered index or some other mechanism to not show the records as you still need to get your D value back to the database.
>
>This is not what I was asking. Please see my reply to Boris.

I was thinking you want to delete (hide) the records and still have to correctly update the base table (set flag instead of actual deletion). Sounds like last idea by Boris (using DeleteCmd) is exactly what we need here. Then it will work correctly and you will delete records with delete command.