unit uBizDatosBancarios; interface uses uDAInterfaces, uDADataTable, schContactosClient_Intf; const BIZ_CLIENT_DATOS_BANCARIOS = 'Client.DatosBancarios'; type IBizDatosBancarios = interface(IDatosBancarios) ['{B4752E6D-CC32-4425-9681-A124D9D26F09}'] function EsNuevo : Boolean; end; TBizDatosBancarios = class(TDatosBancariosDataTableRules, IBizDatosBancarios) protected public function EsNuevo : Boolean; procedure OnNewRecord(Sender: TDADataTable); override; end; implementation uses Dialogs,uDataTableUtils; { TBizDatosBancarios } function TBizDatosBancarios.EsNuevo: Boolean; begin Result := (ID < 0); end; procedure TBizDatosBancarios.OnNewRecord(Sender: TDADataTable); begin inherited; ID := GetRecNo; // -1, -2, -3... end; initialization RegisterDataTableRules(BIZ_CLIENT_DATOS_BANCARIOS, TBizDatosBancarios); end.