如何为DBGrid特殊单元格着色？

我有一列只有“是”和“否”值。 我想要如果列值为“是”，则只有单元格背景颜色为红色 否则“否”则背景颜色为黄色 但这段代码为整行着色：

if ADOTable1.FieldByName('Clubs').AsString = 'yes' then
begin
  DBGrid1.Canvas.Brush.Color := clRed;
  DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State);
end;

EDIT

感谢您的回复。 我真正的代码看起来像这样。 “netice”列只有“L、D、W”。

if Column.FieldName = 'netice' then
 begin
 if ADOTable1.FieldByName('netice').AsString = 'L' then
 DBGrid1.Canvas.Brush.Color := clgreen ;
 if ADOTable1.FieldByName('netice').AsString = 'D' then
 DBGrid1.Canvas.Brush.Color := clRed ;
 if ADOTable1.FieldByName('netice').AsString = 'W' then
 DBGrid1.Canvas.Brush.Color := clYellow ;
 end;
 DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State);
 end;

但我需要 L-绿色、D-红色、W-黄色 我使用的是德尔福2010。

您需要添加一个条件来限制画笔颜色仅更改为您选择的列。在代码中可能是：

procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
  DataCol: Integer; Column: TColumn; State: TGridDrawState);
var
  Field: TField;
begin
  // store the currently rendered cell's column assigned field reference
  // (if any) to the local variable (there's quite expensive getter)
  Field := Column.Field;
  // if the rendered cell's column has assigned a field and this field's
  // name is 'Clubs' (compared without case sensitivity), then, and only
  // then change the brush color...
  if Assigned(Field) and SameText(Field.FieldName, 'Clubs') then
  begin
    if Field.AsString = 'yes' then
      DBGrid1.Canvas.Brush.Color := clRed
    else
      DBGrid1.Canvas.Brush.Color := clYellow;
  end;
  DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State);
end;

我之前更喜欢这个Column.FieldName因为Column.FieldName尚不保证链接数据集中存在这样的字段。因此，以这种方式直接访问现场更加安全。