login.frm

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VERSION 5.00
Begin VB.Form login 
   Caption         =   "Form1"
   ClientHeight    =   2820
   ClientLeft      =   4935
   ClientTop       =   3990
   ClientWidth     =   3885
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2820
   ScaleWidth      =   3885
   Begin VB.TextBox Text2 
      Height          =   495
      IMEMode         =   3  'DISABLE
      Left            =   1800
      PasswordChar    =   "*"
      TabIndex        =   2
      Top             =   1320
      Width           =   1575
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   1800
      TabIndex        =   1
      Top             =   480
      Width           =   1575
   End
   Begin VB.CommandButton Command1 
      Caption         =   "登陆"
      Height          =   495
      Left            =   360
      TabIndex        =   3
      Top             =   2040
      Width           =   1215
   End
   Begin VB.CommandButton Command2 
      Caption         =   "退出"
      Height          =   495
      Left            =   2280
      TabIndex        =   4
      Top             =   2040
      Width           =   1095
   End
   Begin VB.Label Label2 
      Caption         =   "密码："
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   12
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   480
      TabIndex        =   5
      Top             =   1320
      Width           =   735
   End
   Begin VB.Label Label1 
      Caption         =   "编号："
      BeginProperty Font 
         Name            =   "MS Sans Serif"
         Size            =   12
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   480
      TabIndex        =   0
      Top             =   600
      Width           =   1095
   End
End
Attribute VB_Name = "login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit



Private Sub Command1_Click()
Dim rst As ADODB.Recordset
Set rst = New ADODB.Recordset
rst.Open "SELECT id,access FROM employeeinfo where id='" & Text1.Text & "' and password='" & Text2 & "'", cnn, adOpenForwardOnly, adLockReadOnly
If Not rst.EOF Then
    CurrentStatus = 1              '设置登录状态
    CurrentUser = Text1            '设置当前用户
    If rst.Fields(1).Value = 1 Then
    UserRank = "1"                 '设置当前权限
    Else
    UserRank = "0"
    End If
    rst.Close
    Set rst = Nothing
    main.Show
    Unload Me
Else                            '数据库中不存在匹配记录
    rst.Close
    Set rst = Nothing
    MsgBox "用户名或密码错误", vbOKOnly, "警告"
    Text1 = ""
    Text2 = ""
    
End If
End Sub

Private Sub Command2_Click()
CloseDb
End
End Sub

Private Sub Form_Load()

OpenDb Str

End Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)
If KeyAscii = vbKeyReturn Then Command1_Click
End Sub