如何将这段代码变成通用过程
这点代码也是来自网上，它帮我实现了DBGRID控件隔行变色等功能，但我的系统用了很多dbgrid控件，所以麻烦哪位朋友帮我把这段代码变成通用过程，谢谢！

procedure TProduct.DBGrid1DrawColumnCell(Sender: TObject;
const Rect: TRect; DataCol: Integer; Column: TColumn;
State: TGridDrawState);
var i: Integer;
begin
if gdSelected in State then Exit;
//定义表头的字体和背景颜色：
for i := 0 to (Sender as TDBGrid).Columns.Count - 1 do
begin
(Sender as TDBGrid).Columns[i].Title.Font.Name := '宋体 '; //字体
(Sender as TDBGrid).Columns[i].Title.Font.Size := 9; //字体大小
(Sender as TDBGrid).Columns[i].Title.Font.Color := $000000FF; //字体颜色(红色)
(Sender as TDBGrid).Columns[i].Title.Color := $0000FF00; //背景色(绿色)
end;
//隔行改变网格背景色：
if DBGrid1.DataSource.DataSet.RecNo mod 2 = 0 then
(Sender as TDBGrid).Canvas.Brush.Color := clInfoBk; //定义背景颜色
{else
(Sender as TDBGrid).Canvas.Brush.Color := RGB(191, 255, 223);}//定义背景颜色
//定义网格线的颜色：
DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State);
with (Sender as TDBGrid).Canvas do //画 cell 的边框
begin
Pen.Color := $00FF0000; //定义画笔颜色(蓝色)
MoveTo(Rect.Left, Rect.Bottom); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画蓝色的横线
Pen.Color := $0000FF00; //定义画笔颜色(绿色)
MoveTo(Rect.Right, Rect.Top); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画绿色的竖线
end;
end;


[解决办法]
procedure TProduct.DrawColumnCell(Sender: TObject;
const Rect: TRect; DataCol: Integer; Column: TColumn;
State: TGridDrawState);
var i: Integer;
begin
if gdSelected in State then Exit;
//定义表头的字体和背景颜色：
for i := 0 to (Sender as TDBGrid).Columns.Count - 1 do
begin
(Sender as TDBGrid).Columns[i].Title.Font.Name := '宋体 '; //字体
(Sender as TDBGrid).Columns[i].Title.Font.Size := 9; //字体大小
(Sender as TDBGrid).Columns[i].Title.Font.Color := $000000FF; //字体颜色(红色)
(Sender as TDBGrid).Columns[i].Title.Color := $0000FF00; //背景色(绿色)
end;
//隔行改变网格背景色：
if DBGrid1.DataSource.DataSet.RecNo mod 2 = 0 then
(Sender as TDBGrid).Canvas.Brush.Color := clInfoBk; //定义背景颜色
{else
(Sender as TDBGrid).Canvas.Brush.Color := RGB(191, 255, 223);}//定义背景颜色
//定义网格线的颜色：
DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State);
with (Sender as TDBGrid).Canvas do //画 cell 的边框
begin
Pen.Color := $00FF0000; //定义画笔颜色(蓝色)
MoveTo(Rect.Left, Rect.Bottom); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画蓝色的横线
Pen.Color := $0000FF00; //定义画笔颜色(绿色)
MoveTo(Rect.Right, Rect.Top); //画笔定位
LineTo(Rect.Right, Rect.Bottom); //画绿色的竖线
end;
end;


//调用。。。

procedure TProduct.DBGrid1DrawColumnCell(Sender: TObject;
const Rect: TRect; DataCol: Integer; Column: TColumn;
State: TGridDrawState);
begin
DrawColumnCell(Sender,
Rect,DataCol,Column,
State);
end;