formlogin.frm

基于Visual Basic 6.0 与Access 2003的学籍管理系统,可以实现许多功能

VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登录"
   ClientHeight    =   3075
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   5415
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3075
   ScaleWidth      =   5415
   ShowInTaskbar   =   0   'False
   StartUpPosition =   1  '所有者中心
   Begin VB.TextBox txtUserID 
      Height          =   375
      Left            =   1560
      MaxLength       =   10
      TabIndex        =   6
      Text            =   "Text1"
      Top             =   960
      Width           =   1935
   End
   Begin VB.Data dataUser 
      Caption         =   "用户"
      Connect         =   "Access 2000;"
      DatabaseName    =   "C:\Program Files\StudentMIS\StudentMIS.mdb"
      DefaultCursorType=   0  '缺省游标
      DefaultType     =   2  '使用 ODBC
      Exclusive       =   0   'False
      Height          =   375
      Left            =   3840
      Options         =   0
      ReadOnly        =   0   'False
      RecordsetType   =   1  'Dynaset
      RecordSource    =   "SELECT * FROM Users WHERE UserName ="" & txtUserName.Text & """
      Top             =   2160
      Visible         =   0   'False
      Width           =   1140
   End
   Begin VB.CommandButton cmdQuit 
      Caption         =   "退出"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2880
      TabIndex        =   5
      Top             =   2160
      Width           =   735
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "登录"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   1440
      TabIndex        =   4
      Top             =   2160
      Width           =   735
   End
   Begin VB.TextBox txtPassword 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   1560
      MaxLength       =   10
      PasswordChar    =   "*"
      TabIndex        =   3
      Text            =   "Text1"
      Top             =   1560
      Width           =   1935
   End
   Begin VB.TextBox txtUserName 
      DataField       =   "UserName"
      DataSource      =   "dataUser"
      Height          =   375
      Left            =   4080
      MaxLength       =   10
      TabIndex        =   2
      Text            =   "Text1"
      Top             =   1560
      Visible         =   0   'False
      Width           =   735
   End
   Begin VB.Label Label5 
      Caption         =   "Hongs Yam ddDD Chen Pilihuo Wumg Charsman"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   255
      Left            =   600
      TabIndex        =   9
      Top             =   2640
      Width           =   4455
   End
   Begin VB.Label Label4 
      Caption         =   "2007试用版"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   3960
      TabIndex        =   8
      Top             =   960
      Width           =   1095
   End
   Begin VB.Label Label1 
      Caption         =   "学籍管理系统"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   26.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1080
      TabIndex        =   7
      Top             =   240
      Width           =   3375
   End
   Begin VB.Label Label3 
      Caption         =   "密码"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   840
      TabIndex        =   1
      Top             =   1560
      Width           =   495
   End
   Begin VB.Label Label2 
      Caption         =   "用户名"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   600
      TabIndex        =   0
      Top             =   960
      Width           =   735
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Public LoginSucceded As Boolean
Dim BookMK



Private Sub cmdOK_Click()

Static Count As Byte

txtUserID.Text = Replace(Trim(txtUserID.Text), "'", "")

txtPassword.Text = Replace(Trim(txtPassword.Text), "'", "")

If txtUserID.Text = "" Then

    MsgBox "用户名不能为空！"
    
    txtUserName.SetFocus
    
    Exit Sub
    
ElseIf txtPassword.Text = "" Then

    MsgBox "密码不能为空！"
    
    txtPassword.SetFocus
    
    Exit Sub
    
ElseIf txtUserName.Text = "" Then
    
    Count = Count + 1
    
    If Count >= 3 Then

         MsgBox " 你无权使用该系统！"

    End
    
    End If
    
    If dataUser.Recordset.RecordCount > 0 Then

    BookMK = dataUser.Recordset.Bookmark
    
    Else
    
    BookMK = Null
    
    End If
    
    txtUserID.Text = ""
    
    txtPassword.Text = ""
    
    txtUserID.SetFocus

    MsgBox "用户名不存在！"
    
    txtUserID.SetFocus
    
    Exit Sub

End If

    Me.Hide
    
    frmMain.Show

'Set Conn = New ADODB.Connection

'Set rs = New ADODB.Recordset

'strSQL = " SELECT * FROM Users WHERE UserID = '" & strUserID & "'"

'strSQL = strSQL & " AND Password = '" & strPassword & "'"

'Conn.Open ConnString

'rs.Open strSQL, Conn

'If rs.EOF Then
    
'    UserName = rs("UserName").Value
    
'    Me.Hide

'rs.Close

'Conn.Close

'Set rs = Nothing



End Sub

Private Sub cmdQuit_Click()

End

End Sub

Private Sub Form_Load()

txtUserID.Text = ""
    
txtPassword.Text = ""

dataUser.DatabaseName = App.Path & "\StudentMIS.mdb"

dataUser.Visible = False

'If dataUser.Recordset.RecordCount > 0 Then

 '   BookMK = dataUser.Recordset.Bookmark
    
'Else
 '   BookMK = Null
    
'End If

'dataUser.Recordset.AddNew

End Sub

Private Sub txtUserID_Change()

strSQL = "SELECT * FROM Users WHERE UserID ='" & txtUserID.Text & "'"

dataUser.RecordSource = strSQL

dataUser.Refresh

End Sub