At 09:25 PM 27/04/2012, nielsvanaert wrote:

>Thank you for your quick response.
>
>How can I determine which value will cause this exception?
>
>Below you can find the complete call stack.
>
>BLToolkit.Data.DataException: validation error for column *** unknown ***, value "*** null ***"
>At procedure 'FEEDINGS_UPDATE' line: 14, col: 3 ---> FirebirdSql.Data.FirebirdClient.FbException: validation error for column *** unknown ***, value "*** null ***"
>At procedure 'FEEDINGS_UPDATE' line: 14, col: 3 --->

Well, the obvious thing would be to inspect the source of that procedure and see what's doing in line 14. If it is assigning to a variable that was defined with a domain as its field type then inspect the source of the domain.

The rest is pertinent to your client environment. If you want more understanding of that, subscribe to the firebird-net-provider list and ask there.

./heLen