get different background color of DBGrid for odd and even rows (2)?

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//source for main form :

//…
uses
// …
Grids, DBGrids, db
//…

procedure artgrid(Sender: TObject; const Rect: TRect; DataCol: Integer;
Column: TColumn; State: TGridDrawState);
//…

implementation
//…

procedure TForm1.artgrid(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn; State: TGridDrawState);
begin
if 
((Sender as tdbgrid).DataSource.DataSet.RecNo mod 2) = 0 then
(Sender as tdbgrid).Canvas.Brush.Color := clblue; //or any color
(Sender as tdbgrid).DefaultDrawColumnCell(rect, datacol, column, state);
end;

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// for all DrawColumnCell event of DBGrid in any Form (here “Form2”):

procedure TForm2.DBGrid2DrawColumnCell(Sender: TObject; const Rect: TRect;
DataCol: Integer; Column: TColumn;
State: TGridDrawState);
begin
Form1.artgrid(Sender, Rect, DataCol, Column, State);
end;