Автор: Марина Прядко

Нам нужен StringGrid и 4 кнопки:

• AddColButton - Добавление столбца
• DelColButton1 и DelColButton2 - Удаление столбца (2 способа)
• MoveColButton - Перемещение столбца

type
  TForm1 = class(TForm)
    StringGrid1: TStringGrid;
    AddColButton: TButton;
    DelColButton1: TButton;
    MoveColButton: TButton;
    DelColButton2: TButton;
    procedure AddColButtonClick(Sender: TObject);
    procedure DelColButton1Click(Sender: TObject);
    procedure MoveColButtonClick(Sender: TObject);
    procedure DelColButton2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
type
  TAddDelStringGrid = class(TStringGrid)
  protected
    procedure RemoveColumn1(DelColumn: Integer);//Удаление (способ 1)
    procedure RemoveColumn2(DelColumn: Longint);  //Удаление (способ 2)
    procedure AddColumn(NewColumn: Integer);//Добавление столбца 
    procedure MoveColumn(FromIndex, ToIndex: Longint);//Перемещение
 end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
procedure TAddDelStringGrid.RemoveColumn2(DelColumn: Longint);
 begin
 if DelColumn = FixedCols then
 begin
   if DelColumn = (ColCount - 1) then
   begin
    Cols[DelColumn].Clear;
    if ColCount<FixedCols + 1 then ColCount := (ColCount - 1);
   end
 end
 else
 begin
  Cols[DelColumn] := Cols[DelColumn + 1];
  DeleteColumn(DelColumn + 1);
 end;
 end;
 
procedure TAddDelStringGrid.RemoveColumn1(DelColumn: Integer);
var
   Column: Integer;
begin
  if DelColumn <= ColCount then
  begin
    Cols[DelColumn].Clear;
    for Column := DelColumn+1 to ColCount - 1 do
      Cols[Column - 1].Assign(Cols[Column]);
    ColCount := ColCount - 1;
  end;
end;
 
procedure TAddDelStringGrid.AddColumn(NewColumn: Integer);
var
  Column: Integer;
begin
 ColCount := ColCount + 1;
 for Column := ColCount - 1 downto NewColumn+1 do
   Cols[Column].Assign(Cols[Column - 1]);
 Cols[NewColumn].Text := '';
end;
 
procedure TAddDelStringGrid.MoveColumn(FromIndex, ToIndex: Longint);
begin
  inherited;
end;
 
//==============================================================
procedure TForm1.AddColButtonClick(Sender: TObject);
begin
  TAddDelStringGrid(StringGrid1).AddColumn(3);
end;
 
procedure TForm1.DelColButton1Click(Sender: TObject);
begin
  TAddDelStringGrid(StringGrid1).RemoveColumn1(3);
end;
 
procedure TForm1.DelColButton2Click(Sender: TObject);
begin
  TAddDelStringGrid(StringGrid1).RemoveColumn2(3);
end;
 
procedure TForm1.MoveColButtonClick(Sender: TObject);
begin
  TAddDelStringGrid(StringGrid1).MoveColumn(1, 3);
end;