frmlogin.frm

宿舍管理系统

VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登录"
   ClientHeight    =   1755
   ClientLeft      =   2835
   ClientTop       =   3480
   ClientWidth     =   4410
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1036.912
   ScaleMode       =   0  'User
   ScaleWidth      =   4140.751
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox txtUserName 
      Height          =   345
      Left            =   1290
      TabIndex        =   1
      Text            =   "huzi"
      Top             =   135
      Width           =   2325
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   390
      Left            =   495
      TabIndex        =   4
      Top             =   1020
      Width           =   1140
   End
   Begin VB.CommandButton cmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   390
      Left            =   2100
      TabIndex        =   5
      Top             =   1020
      Width           =   1140
   End
   Begin VB.TextBox txtPassword 
      Height          =   345
      IMEMode         =   3  'DISABLE
      Left            =   1290
      PasswordChar    =   "*"
      TabIndex        =   3
      Text            =   "0"
      Top             =   525
      Width           =   2325
   End
   Begin VB.Label lblLabels 
      Caption         =   "用户名称(&U):"
      Height          =   270
      Index           =   0
      Left            =   105
      TabIndex        =   0
      Top             =   150
      Width           =   1080
   End
   Begin VB.Label lblLabels 
      Caption         =   "密码(&P):"
      Height          =   270
      Index           =   1
      Left            =   120
      TabIndex        =   2
      Top             =   540
      Width           =   1080
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Public LoginSucceeded As Boolean

Private Sub cmdCancel_Click()
    
    LoginSucceeded = False
    Me.Hide
End Sub

Private Sub cmdOK_Click()
  If txtUserName.Text = "administer" Then
        LoginSucceeded = check(txtUserName, txtPassword)
        If (LoginSucceeded = True) Then
        yhid = txtUserName
        admi = True
        Unload frmLogin
        MDIForm1.Show
        End If
        
    Else
     LoginSucceeded = check(txtUserName, txtPassword)
     If (LoginSucceeded = True) Then
     admi = False
     yhid = txtUserName
     Me.Hide
     MDIForm1.Show
     End If
     
        
    End If
    
End Sub
Function check(userid As String, txtpwd As String) As Boolean
Dim idinfo As Recordset
Dim sqlstr As String
sqlstr = "select id, pw from mmb where id='" & userid & "'"
Set idinfo = db.OpenRecordset(sqlstr, dbOpenSnapshot, dbReadOnly)
If (idinfo.RecordCount = 0) Then
MsgBox "无此用户  ", , "登陆 "
check = False
Else
If (idinfo.Fields("pw").Value = Trim(txtpwd)) Then
check = True
Else
MsgBox "无效的密码，请重试 ", , "登陆 "
check = False
End If
End If
idinfo.Close

End Function

Private Sub Form_Load()
Call opendb
End Sub