frmlogin.frm

这是我自己做的关于公交车查询的系统

VERSION 5.00
Begin VB.Form frmLogin 
   BackColor       =   &H00FFC0C0&
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "登录"
   ClientHeight    =   3015
   ClientLeft      =   5160
   ClientTop       =   4560
   ClientWidth     =   6045
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1781.361
   ScaleMode       =   0  'User
   ScaleWidth      =   5675.928
   ShowInTaskbar   =   0   'False
   Begin VB.ComboBox Combo1 
      Height          =   300
      Left            =   2640
      TabIndex        =   7
      Top             =   480
      Width           =   1335
   End
   Begin VB.TextBox txtUserName 
      Height          =   345
      Left            =   2520
      TabIndex        =   1
      Top             =   1080
      Width           =   2325
   End
   Begin VB.CommandButton cmdOK 
      BackColor       =   &H00FFC0C0&
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   390
      Left            =   1800
      TabIndex        =   4
      Top             =   2160
      Width           =   1140
   End
   Begin VB.CommandButton cmdCancel 
      BackColor       =   &H00FFC0C0&
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   390
      Left            =   3120
      TabIndex        =   5
      Top             =   2160
      Width           =   1140
   End
   Begin VB.TextBox txtPassword 
      Height          =   345
      IMEMode         =   3  'DISABLE
      Left            =   2520
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   1560
      Width           =   2325
   End
   Begin VB.Label Label2 
      BackColor       =   &H00FFC0C0&
      Height          =   735
      Left            =   4560
      TabIndex        =   8
      Top             =   2160
      Width           =   1335
   End
   Begin VB.Label Label1 
      BackColor       =   &H00FFC0C0&
      Caption         =   "请选择用户级别"
      Height          =   375
      Left            =   1080
      TabIndex        =   6
      Top             =   480
      Width           =   1335
   End
   Begin VB.Label lblLabels 
      BackColor       =   &H00FFC0C0&
      Caption         =   "用户名称(&U):"
      Height          =   270
      Index           =   0
      Left            =   1200
      TabIndex        =   0
      Top             =   1080
      Width           =   1080
   End
   Begin VB.Label lblLabels 
      BackColor       =   &H00FFC0C0&
      Caption         =   "密码(&P):"
      Height          =   270
      Index           =   1
      Left            =   1200
      TabIndex        =   2
      Top             =   1560
      Width           =   1080
   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()
    '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()
    '检查正确的密码
 
 
    If Combo1.Text = "普通用户" Or Combo1.Text = "管理员" And txtUserName = "admin" And txtPassword = "123" Then
       Form1.Show  '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
  
End Sub



Private Sub Combo1_click()
Select Case Combo1.Text
Case "管理员"

txtUserName.Visible = True
cmdOK.Visible = True
cmdCancel.Visible = True
txtPassword.Visible = True
lblLabels(0).Visible = True
lblLabels(1).Visible = True
Case "普通用户"
Label2.Caption = "普通用户直接单击确认按钮，无须输入密码"
cmdCancel.Visible = False
txtUserName.Visible = False
txtPassword.Visible = False
lblLabels(0).Visible = False
lblLabels(1).Visible = False
cmdOK.Visible = True
End Select




End Sub




Private Sub Form_Load()
Combo1.AddItem "普通用户"
Combo1.AddItem "管理员"
cmdCancel.Visible = False
txtUserName.Visible = False
txtPassword.Visible = False
lblLabels(0).Visible = False
lblLabels(1).Visible = False
cmdOK.Visible = False

End Sub