frm_login.frm

一个长途汽车站收费管理系统

VERSION 5.00
Begin VB.Form frm_Login 
   Caption         =   "登录"
   ClientHeight    =   3435
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3435
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton fault 
      Caption         =   "取消"
      Height          =   375
      Left            =   2640
      TabIndex        =   6
      Top             =   2880
      Width           =   1095
   End
   Begin VB.CommandButton cmd_login 
      Caption         =   "登录"
      Height          =   375
      Left            =   1080
      TabIndex        =   5
      Top             =   2880
      Width           =   975
   End
   Begin VB.Frame Frame1 
      Height          =   1815
      Left            =   360
      TabIndex        =   0
      Top             =   840
      Width           =   3735
      Begin VB.TextBox Password 
         Height          =   375
         IMEMode         =   3  'DISABLE
         Left            =   1320
         PasswordChar    =   "*"
         TabIndex        =   4
         Top             =   960
         Width           =   2055
      End
      Begin VB.TextBox Username 
         Height          =   375
         Left            =   1320
         TabIndex        =   2
         Top             =   360
         Width           =   2055
      End
      Begin VB.Label Label2 
         Caption         =   "密码"
         BeginProperty Font 
            Name            =   "新宋体"
            Size            =   9.75
            Charset         =   0
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H8000000D&
         Height          =   375
         Left            =   360
         TabIndex        =   3
         Top             =   960
         Width           =   1095
      End
      Begin VB.Label Label1 
         Caption         =   "用户名"
         BeginProperty Font 
            Name            =   "新宋体"
            Size            =   9.75
            Charset         =   0
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H8000000D&
         Height          =   375
         Left            =   360
         TabIndex        =   1
         Top             =   360
         Width           =   1095
      End
   End
   Begin VB.Label Label3 
      Caption         =   "长途汽车信息管理系统"
      BeginProperty Font 
         Name            =   "新宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H8000000D&
      Height          =   375
      Left            =   600
      TabIndex        =   7
      Top             =   360
      Width           =   3495
   End
End
Attribute VB_Name = "frm_Login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub cmd_login_Click()
Dim strSQL As String

If Username.Text = "" Then
    MsgBox "用户名不能为空", vbOKOnly
    Exit Sub
End If

OpenDB
strSQL = "Select * from users where username='" + Trim(Username.Text) + "'"
objRS.Open strSQL, objConn, adOpenDynamic, adLockOptimistic
If objRS.EOF Then
    MsgBox "用户名不存在", vbOKOnly
    objRS.Close
    CloseDB
    Exit Sub
Else
    If Password.Text = objRS.Fields(1).Value Then
       CurrentUser = Username.Text
       frm_Main.Show
       objRS.Close
       CloseDB
       Logged = True
       Unload Me
       Exit Sub
    Else
        objRS.Close
        CloseDB
        MsgBox "密码错误", vbOKOnly
        Password.SetFocus
    End If
End If
End Sub

Private Sub fault_Click()
End
End Sub


Private Sub Form_Unload(Cancel As Integer)
If Not Logged Then
End
End If

End Sub

Private Sub Password_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then
    cmd_login_Click
    End If
End Sub