unit Jonson;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Button1: TButton;
    Button2: TButton;
    Label6: TLabel;
    Edit1: TEdit;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  koldet: integer;

implementation

uses Vvod;

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);

begin
   if (length (Edit1.Text)=0)
   then ShowMessage ('Ошибка ввода данных.'
              +#13+'Поле "Количество элементов"'
              +#13+'должно быть заполнено!')
   else
     begin
     koldet := StrToInt(Edit1.text);
     Form2.Show;  //переключение на вторую форму
     end;
   
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Close;
end;

end.