form7.frm

Visual Basic是一种新型的现代语言。与传统的语言相比

VERSION 5.00
Begin VB.Form frmLogin 
   Caption         =   "登陆"
   ClientHeight    =   2970
   ClientLeft      =   60
   ClientTop       =   1425
   ClientWidth     =   4695
   LinkTopic       =   "Form7"
   ScaleHeight     =   2970
   ScaleWidth      =   4695
   StartUpPosition =   2  '屏幕中心
   Begin VB.Frame Frame1 
      Height          =   2055
      Left            =   30
      TabIndex        =   1
      Top             =   150
      Width           =   4575
      Begin VB.ComboBox Combo1 
         Height          =   300
         Left            =   1560
         TabIndex        =   5
         Top             =   600
         Width           =   2445
      End
      Begin VB.TextBox txtPwd 
         BeginProperty Font 
            Name            =   "MS Sans Serif"
            Size            =   13.5
            Charset         =   0
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   465
         IMEMode         =   3  'DISABLE
         Left            =   1560
         PasswordChar    =   "*"
         TabIndex        =   2
         Top             =   1080
         Width           =   2415
      End
      Begin VB.Label Label1 
         Caption         =   "用户名："
         Height          =   375
         Left            =   480
         TabIndex        =   4
         Top             =   600
         Width           =   975
      End
      Begin VB.Label Label2 
         Caption         =   "密    码："
         Height          =   375
         Left            =   480
         TabIndex        =   3
         Top             =   1080
         Width           =   975
      End
   End
   Begin VB.CommandButton cmdLogin 
      Caption         =   "登     录"
      Height          =   495
      Left            =   1650
      TabIndex        =   0
      Top             =   2340
      Width           =   1215
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmdCancel_Click()
    txtUser.Text = ""
    txtPwd.Text = ""
End Sub

Private Sub cmdLogin_Click()
    Dim rs As New ADODB.Recordset
    rs.Open "select * from LogUser where 用户名='" & Me.Combo1.Text & "' and 密码='" & txtPwd.Text & "'", Conn
    If rs.RecordCount = 0 Then
        rs.Close
        MsgBox "用户名或密码不正确！", vbOKOnly + vbInformation, "注意"
        Exit Sub
    Else
        If rs!权限 = "系统管理员" Then
            flag = True
        Else
            flag = False
        End If
        rs.Close
        Unload Me
        fmStart.Show
    End If
End Sub

Private Sub Form_Load()
On Error GoTo 100
    Connstr = "provider=Microsoft.Jet.OLEDB.4.0; data source= " & App.Path & "\dataUse.mdb"
    Conn.CursorLocation = adUseClient
    Conn.Open Connstr
    Call fill
    Exit Sub
100:
    MsgBox Err.Description, vbExclamation, "X"
    End
End Sub

Private Sub fill()
    Dim rs As New ADODB.Recordset
    Set rs = New ADODB.Recordset
    rs.Open "select * from LogUser", Conn, adOpenStatic, adLockOptimistic
    Me.Combo1.Clear
    For i = 0 To rs.RecordCount - 1
        Me.Combo1.AddItem rs!用户名
        rs.MoveNext
    Next i
    rs.Close
End Sub