Добавление колонки в StringGrid 2

Автор: http://www.sources.ru

procedure AddColumn(SG: TStringGrid; AtColNumber: integer;
  ColWidth: integer = 0);
var
  Column: integer;
  Wdth: integer;
begin
  AtColNumber := abs(AtColNumber);
  SG.ColCount := SG.ColCount + 1;
  if abs(ColWidth) = 0 then
    Wdth := SG.DefaultColWidth
  else
    Wdth := ColWidth;

  if AtColNumber <= SG.ColCount then
  begin
    for Column := SG.ColCount - 1 downto AtColNumber + 1 do
    begin
      SG.Cols[Column].Assign(SG.Cols[Column - 1]);
      SG.Colwidths[Column] := SG.Colwidths[Column - 1];
    end;

    SG.Cols[AtColNumber].Text := '';
    SG.Colwidths[AtColNumber] := Wdth;
  end;
end;