frmlogin.frm

酒店管理系统

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form frmlogin 
   Caption         =   "用户登录"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   2  '屏幕中心
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   330
      Left            =   720
      Top             =   2640
      Visible         =   0   'False
      Width           =   1575
      _ExtentX        =   2778
      _ExtentY        =   582
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   8
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   ""
      OLEDBString     =   ""
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   ""
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   375
      Left            =   2520
      TabIndex        =   5
      Top             =   2040
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   375
      Left            =   840
      TabIndex        =   4
      Top             =   2040
      Width           =   1095
   End
   Begin VB.TextBox text2 
      Height          =   285
      IMEMode         =   3  'DISABLE
      Left            =   1800
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   1200
      Width           =   1575
   End
   Begin VB.TextBox text1 
      Height          =   285
      Left            =   1800
      TabIndex        =   2
      Top             =   600
      Width           =   1575
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "密码"
      Height          =   195
      Left            =   1080
      TabIndex        =   1
      Top             =   1200
      Width           =   360
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "用户名"
      Height          =   195
      Left            =   960
      TabIndex        =   0
      Top             =   600
      Width           =   540
   End
End
Attribute VB_Name = "frmlogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim cnt As Integer                     '记录确定次数

Private Sub Command1_Click()
Dim sql As String
Dim rs_login As New ADODB.Recordset
If Trim(Text1.Text) = "" Then            '判断输入的用户名是否为空
   MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
   Text1.SetFocus
Else
   sql = "select * from 系统管理 where 用户名='" & Text1.Text & "'"
   rs_login.Open sql, conn, adOpenKeyset, adLockPessimistic
   If rs_login.EOF = True Then
      MsgBox "没有这个用户", vbOKOnly + vbExclamation, ""
      Text1.SetFocus
   Else                                  '检验密码是否正确
      If Trim(rs_login.Fields(1)) = Trim(Text2.Text) Then
          userID = Text1.Text
          userpow = rs_login.Fields(2)
          rs_login.Close
          Unload Me
          MDIForm1.Show
      Else
         MsgBox "密码不正确", vbOKOnly + vbExclamation, ""
         Text2.SetFocus
      End If
   End If
End If
cnt = cnt + 1
If cnt = 3 Then
   Unload Me
End If
Exit Sub
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Form_Load()
Dim connectionstring As String
connectionstring = "provider=Microsoft.Jet.oledb.4.0;" & _
                   "data source=jiudian.mdb"
conn.Open connectionstring
cnt = 0
End Sub