frmlogin.frm

毕业设计 固定资产管理系统

VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登录"
   ClientHeight    =   1548
   ClientLeft      =   2832
   ClientTop       =   3480
   ClientWidth     =   3756
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   912.837
   ScaleMode       =   0  'User
   ScaleWidth      =   3521.047
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox txtUserName 
      Height          =   345
      Left            =   1290
      TabIndex        =   1
      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
      Top             =   525
      Width           =   2325
   End
   Begin VB.Label lblLabels 
      Caption         =   "用户名称(&U):"
      Height          =   276
      Index           =   0
      Left            =   108
      TabIndex        =   0
      Top             =   156
      Width           =   1176
   End
   Begin VB.Label lblLabels 
      Caption         =   "密码(&P):"
      Height          =   270
      Index           =   1
      Left            =   105
      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()
    '设置全局变量为 false
    '不提示失败的登录
    LoginSucceeded = False
    Me.Hide
End Sub

Private Sub cmdOK_Click()
    
    Dim strPwd As String
    Dim rsPwd As ADODB.Recordset
    Dim strLogin As String
    
    strLogin = Trim(txtUserName.Text)
    strPwd = Trim(txtPassword.Text)
    
    If Len(strLogin) = 0 Then
        MsgBox "用户名不能为空,请输入用户名"
        txtUserName.SetFocus
        Exit Sub
    End If
    
    If Len(strPwd) = 0 Then
        MsgBox "密码不能为空,请输入正确的密码"
        txtPassword.SetFocus
        Exit Sub
    End If
    
    Set rsPwd = gConn.Execute("SELECT pwd FROM tblUser WHERE login='" & Replace(strLogin, "'", "''") & "'")
    
    If rsPwd.EOF Then
        MsgBox "用户名不正确,请重新输入!"
    ElseIf strPwd = rsPwd("pwd").value Then
        '将代码放在这里传递
        '成功到 calling 函数
        '设置全局变量时最容易的
        LoginSucceeded = True
        Me.Hide
    Else
        MsgBox "无效的密码，请重试!", , "登录"
        txtPassword.SetFocus
        SendKeys "{Home}+{End}"
    End If
    
    rsPwd.Close
    Set rsPwd = Nothing
        
End Sub