Удаление и добавление столбцов и колонок

Code:

Procedure GridAddColumn(StrGrid: TStringGrid; NewColumn: Integer);

Var Column: Integer;

begin

StrGrid.ColCount := StrGrid.ColCount+1;

For Column := StrGrid.ColCount-1 downto NewColumn do

   StrGrid.Cols[Column].Assign(StrGrid.Cols[Column-1]);

StrGrid.Cols[NewColumn-1].Text := '';

end;

Code:

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;