[NumLock]

при добавлении записи в TDBGrid выводится вопрос "Отменить добавление?":

Код:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids, DB, DBTables;

type
  TForm1 = class(TForm)
    DataSource1: TDataSource;
    Table1: TTable;
    DBGrid1: TDBGrid;
    procedure FormCreate(Sender: TObject);
    procedure Table1AfterInsert(DataSet: TDataSet);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  Table1.AfterInsert:=Table1AfterInsert;
end;

procedure TForm1.Table1AfterInsert(DataSet: TDataSet);
begin
  if MessageBox(Handle, 'Отменить добавление?', 'Вопрос',
  MB_OKCANCEL or MB_ICONQUESTION)=IDOK then Table1.Cancel;
end;

end.