public
    { Public declarations }
    tvTemp: TcxGridDBTableView;
    lTemp: TcxGridLevel;
    gdTemp: TcxGrid;
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  gdTemp := TcxGrid.Create(self);

  lTemp := gdTemp.Levels.Add;
  tvTemp := TcxGridDBTableView(gdTemp.CreateView(TcxGridDBTableView));

  lTemp.Control := gdTemp;
  lTemp.GridView := tvTemp;

  gdTemp.ParentWindow := self.Handle;
  gdTemp.Top := 0;
  gdTemp.Height := 200;
  gdTemp.Width := 400;

  tvTemp.Preview.Visible := true;
  tvTemp.DataController.DataSource := OraDataSource1;
  tvTemp.DataController.CreateAllItems;
  ShowMessage(tvTemp.Columns[0].Caption);
end;