dxDBgrid中onCustomDrawcell的用法？(100分)

dxDBgrid中onCustomDrawcell的用法？如何画颜色交替的行？
procedure TForm.dxDBGrid1CustomDrawCell(Sender: TObject;
ACanvas: TCanvas; ARect: TRect; ANode: TdxTreeListNode;
AColumn: TdxTreeListColumn; ASelected, AFocused, ANewItemRow: Boolean;
var AText: String; var AColor: TColor; AFont: TFont;
var AAlignment: TAlignment; var ADone: Boolean);
begin
//
end;

各参数的用法

画颜色交替的行
if (ANode.Index mod 2)=0 then AColor:=$00F4F2EC
else AColor:= $00DCEEF3;

接受答案了.