problem on treatment when add a duplicate primary key

Hi,

I'm getting an error when I try to insrt a duplicated value in

a primary key or unique index.

I know I can't insert so I'll explain the thing:

 

When I insert the first time the row, it works

but if I try to re-insert it simply crashes my application,

giving me errors that I couldn't treat (I can treat this error in

MSSQL ODBC Driver and MySQL ODBC Driver).

 

I'm attaching the logs.

 

TIA,

Ricardo.