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DELPHI LOGIN

unit AHP;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls,

Forms,

Dialogs, StdCtrls, XPMan, DB, ADODB, ExtCtrls;

type

Tfrmlogin = class(TForm)

ADOClogin: TADOConnection;

adoqlogin: TADOQuery;

BLogin: TButton;

Button2: TButton;Panel1: TPanel;

edpas: TEdit;

eduser: TEdit;

Panel2: TPanel;

Label1: TLabel;

Label2: TLabel;

procedure Button2Click(Sender: TObject);

procedure BLoginClick(Sender: TObject);

procedure eduserKeyDown(Sender: TObject; var Key: Word;

Shift: TShiftState);

procedure edpasKeyDown(Sender: TObject; var Key: Word;Shift: TShiftState);

procedure FormCreate(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

frmlogin: Tfrmlogin;

implementation

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uses u_utama;

{$R *.dfm}

procedure Tfrmlogin.Button2Click(Sender: TObject);

begin

if (Application.MessageBox('Yakin ingin keluar dari aplikasi??'

,'pertanyaan',mb_iconquestion or mb_yesno) = idyes) then

Application.Terminate;

end;

procedure Tfrmlogin.BLoginClick(Sender: TObject);

begin

with adoqlogin do begin

close;

sql.Clear;

sql.Add('select * from login where username = '+

quotedstr (eduser.Text));open;

end;

if ADOQlogin.RecordCount = 0 then

Application.MessageBox('Maaf, username tersebut tidak ada',

'Informasi',

MB_OK or MB_ICONINFORMATION)

else

begin

if ADOQlogin.FieldByName('password').AsString edpas.Text

then

beginApplication.MessageBox('Pastikan username atau password benar',

'Error', MB_OK or MB_ICONERROR) ;

end

else

begin

FUtama.Show;

Self.Hide;

end

end;

end;

procedure Tfrmlogin.eduserKeyDown(Sender: TObject; var Key: Word;

Shift: TShiftState);

begin

if chr(Key) = #13 then begin

edpas.SetFocus;

end;

end;

procedure Tfrmlogin.edpasKeyDown(Sender: TObject; var Key: Word;

Shift: TShiftState);

begin

if chr(Key) = #13 then beginBLogin.SetFocus;

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end

end;

procedure Tfrmlogin.FormCreate(Sender: TObject);

var

s : Char;

alamatdb,koneksi : WideString;

begin

// Manipulasi cursors crSQLWait agar tidak tampil

Screen.Cursors[crSQLWait] := Screen.Cursors[crDefault];

// atur tampilan form

s := '*';

eduser.Text := '';

edpas.PasswordChar := s;

edpas.Text := '';

alamatdb := ExtractFilePath(Application.ExeName) + 'ahp.mdb';

koneksi:= 'Provider=Microsoft.Jet.OLEDB.4.0;Data

Source='+alamatdb+';Persist Security Info=False';ADOClogin.ConnectionString:=koneksi;

with ADOClogin do begin

Connected := False;

LoginPrompt := False;

Mode := cmShareDenyNone;

end;

ADOClogin.Connected := True;

end;

end.

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unit u_utama;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls,

Forms,

Dialogs, StdCtrls;

type

TFUtama = class(TForm)

Label1: TLabel;

BLogout: TButton;procedure BLogoutClick(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

FUtama: TFUtama;

implementation

{$R *.dfm}

procedure TFUtama.BLogoutClick(Sender: TObject);

begin

if MessageDlg('Anda akan menutup program ?', mtConfirmation, [mbYes, mbNo],

0) =

mrYes then

Application.Terminate;

end;

end.