https://i.postimg.cc/PrKMGPtr/jjj.png I opened the data base with oServiziSingoli := TDatabase():Open( , "SERVIZI", "DBFCDX", .T. ) oServiziSingoli:bTrigger := { || If( Empty( ORDINE ), ORDINE := RECNO(), nil ),; If( Empty( ID ), ID := strzero(RECNO(),4), ...