Checkbox in dbgrid

How can I get a logical field to show up as a checkbox in a dbgrid?
lizzzardAsked:
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sassas081597Commented:
I give you an idea only. Set DefaultDrawing property of DBGrid to false.
Write the following procedure (I do not draw the checkbox, I only change the color of the cell. The canvas is in your hands. Draw all that you want).

procedure TForm1.DBGrid1DrawDataCell(Sender: TObject; const Rect: TRect;
  Field: TField; State: TGridDrawState);
begin
     If Field.AsBoolean then
     DBGrid1.Canvas.Brush.Color:=clGreen
     else
     DBGrid1.Canvas.Brush.Color:=clRed;
     DBGrid1.Canvas.FillRect(Rect);
end;
At least write the OnClickMethod for these columnes to exchange True and False;
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