如何在dbgrid中畫上一個對號呢﹖

转贴别人的,试试吧
unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Grids;type
  TForm1 = class(TForm)
    grid: TStringGrid;
    procedure FormCreate(Sender: TObject);
    procedure gridDrawCell(Sender: TObject; ACol, ARow: Integer;
      Rect: TRect; State: TGridDrawState);
    procedure gridClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;
  fcheck,fnocheck:tbitmap;
implementation{$R *.DFM}procedure TForm1.FormCreate(Sender: TObject);
var
  i:SmallInt;
  bmp:TBitmap;
begin
  FCheck:= TBitmap.Create;
  FNoCheck:= TBitmap.Create;
  bmp:= TBitmap.create;
  try
    bmp.handle := LoadBitmap( 0, PChar(OBM_CHECKBOXES ));
    With FNoCheck Do Begin
      width := bmp.width div 4;
      height := bmp.height div 3;
      canvas.copyrect( canvas.cliprect, bmp.canvas, canvas.cliprect );
    End;
    With FCheck Do Begin
      width := bmp.width div 4;
      height := bmp.height div 3;
      canvas.copyrect(
        canvas.cliprect,
        bmp.canvas,
        rect( width, 0, 2*width, height ));
    End;
  finally
    bmp.free
  end;
end;
procedure TForm1.gridDrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  if not (gdFixed in State) then
    with TStringGrid(Sender).Canvas do
    begin
      brush.Color:=clWindow;
      FillRect(Rect);
      if Grid.Cells[ACol,ARow]='yes' then
        Draw( (rect.right + rect.left - FCheck.width) div 2,
              (rect.bottom + rect.top - FCheck.height) div 2,
              FCheck )
      else
        Draw( (rect.right + rect.left - FCheck.width) div 2,
              (rect.bottom + rect.top - FCheck.height) div 2,
              FNoCheck );
    end;
end;procedure TForm1.gridClick(Sender: TObject);
begin
  if grid.Cells[grid.col,grid.row]='yes' then
    grid.Cells[grid.col,grid.row]:='no'
  else
    grid.Cells[grid.col,grid.row]:='yes';
end;end.