Удаление и добавление столбцов и колонок

Code:

Procedure GridRemoveColumn(StrGrid: TStringGrid; DelColumn: Integer);

Var Column: Integer;

begin

If DelColumn <= StrGrid.ColCount then

Begin

   For Column := DelColumn To StrGrid.ColCount-1 do

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

   StrGrid.ColCount := StrGrid.ColCount-1;

End;

end;

Code:

procedure RemoveColumn(SG : TStringGrid; ColNumber : integer);

var Column : integer;

begin

ColNumber := abs(ColNumber);

if ColNumber <= SG.ColCount then begin

    for Column := ColNumber to SG.ColCount - 2 do begin

       SG.Cols[Column].Assign(SG.Cols[Column + 1]);

       SG.Colwidths[Column] := SG.Colwidths[Column + 1];

    end;

    SG.ColCount := SG.ColCount - 1;

end;

end;

Code:

procedure TForm1.Button3Click(Sender: TObject);

var

i,j: Integer;

begin

j:=SG1.Row; // строка с выделением

SG1.Rows[j].Clear;

for i:=j to SG1.RowCount-2 do

   SG1.Rows[i].Assign(SG1.Rows[i+1]);

SG1.RowCount:=SG1.RowCount-1;

end;

Code:

type

  TStringGridHack = class(TStringGrid)

  public

    procedure DeleteCol(ACol: Longint);

  end;

var

  Form1: TForm1;

implementation

procedure TStringGridHack.DeleteCol(ACol: Longint);

begin

  if ACol = FixedCols then if ACol = (ColCount - 1) then

    begin

      Cols[ACol].Clear;

      if ColCount(FixedCols + 1) then ColCount := (ColCount - 1);

    end

    else

    begin

      Cols[ACol] := Cols[ACol + 1];

      DeleteCol(ACol + 1);

    end;

end;