[Iljusha]

вобщем я вот так сделал. Думаю тему можно закрывать:

Код:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Memo1: TMemo;
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);

  private
    { Private declarations }
  public
   function ListContained(st: string; StList: TStrings): boolean;
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
function Tform1.ListContained(st: string; StList: TStrings): boolean;
var
  i: longint;
begin
  result := false;
  for i := 0 to StList.Count - 1 do
    if St = StList.Strings[i] then
    begin
      result := true;
      break
    end
end;

procedure TForm1.Button1Click(Sender: TObject);
var
ss:boolean;
a:string;
begin
a:=Edit1.Text;
 ss:=ListContained(a, Memo1.Lines);
 if ss=TRUE then
 begin
 Edit2.Text:='Yes';
 end
 Else Edit2.Text:='No';

 end;

end.