frmlogin.frm

这是一个用VB编写出来的烟草管理系统

VERSION 5.00
Begin VB.Form frmlogin 
   Caption         =   "登录"
   ClientHeight    =   2670
   ClientLeft      =   3360
   ClientTop       =   2880
   ClientWidth     =   4725
   Icon            =   "Frmlogin.frx":0000
   LinkTopic       =   "Form2"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2670
   ScaleWidth      =   4725
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton CancelButton 
      Height          =   300
      Left            =   3480
      Picture         =   "Frmlogin.frx":0442
      Style           =   1  'Graphical
      TabIndex        =   6
      Top             =   2280
      Width           =   1095
   End
   Begin VB.CommandButton OkButton 
      Height          =   300
      Left            =   2160
      Picture         =   "Frmlogin.frx":099D
      Style           =   1  'Graphical
      TabIndex        =   5
      Top             =   2280
      Width           =   1095
   End
   Begin VB.Frame Frame1 
      Appearance      =   0  'Flat
      BackColor       =   &H00C0C0C0&
      ForeColor       =   &H80000008&
      Height          =   1575
      Left            =   120
      TabIndex        =   0
      Top             =   600
      Width           =   4455
      Begin VB.TextBox password 
         Appearance      =   0  'Flat
         BackColor       =   &H80000018&
         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          =   350
         IMEMode         =   3  'DISABLE
         Left            =   1920
         PasswordChar    =   "*"
         TabIndex        =   4
         Top             =   960
         Width           =   2055
      End
      Begin VB.TextBox user 
         Appearance      =   0  'Flat
         BackColor       =   &H80000018&
         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          =   350
         Left            =   1920
         TabIndex        =   2
         Top             =   360
         Width           =   2055
      End
      Begin VB.Image Image2 
         Height          =   480
         Index           =   1
         Left            =   360
         Picture         =   "Frmlogin.frx":0F74
         Top             =   840
         Width           =   480
      End
      Begin VB.Image Image2 
         Height          =   480
         Index           =   0
         Left            =   360
         Picture         =   "Frmlogin.frx":13B6
         Top             =   240
         Width           =   480
      End
      Begin VB.Label Label2 
         BackColor       =   &H8000000C&
         Caption         =   "密  码："
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00C00000&
         Height          =   255
         Left            =   960
         TabIndex        =   3
         Top             =   960
         Width           =   855
      End
      Begin VB.Label Label1 
         BackColor       =   &H8000000C&
         Caption         =   "用户名："
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00C00000&
         Height          =   255
         Left            =   960
         TabIndex        =   1
         Top             =   360
         Width           =   975
      End
   End
   Begin VB.Image Image1 
      Height          =   480
      Left            =   360
      Picture         =   "Frmlogin.frx":16C0
      Top             =   120
      Width           =   480
   End
   Begin VB.Label Label3 
      Caption         =   "用户登录"
      BeginProperty Font 
         Name            =   "楷体_GB2312"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   375
      Left            =   1680
      TabIndex        =   7
      Top             =   120
      Width           =   1575
   End
End
Attribute VB_Name = "frmlogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim db As Database
Dim rs As Recordset
Private Sub Form_Load()
    Set db = OpenDatabase(App.Path + "\db\System.mdb")
    Set rs = db.OpenRecordset("user")
End Sub


Private Sub OkButton_Click()
    If User.Text = "" Then
        MsgBox "用户名不能为空！", vbOKOnly, "警告"
        User.SetFocus
    Else
        Set rs = db.OpenRecordset("SELECT user.password From user WHERE user.user= " + Chr$(34) + User.Text + Chr$(34) + ";")
        If rs.EOF Then
            MsgBox "用户不存在！", vbOKOnly, "警告"
            User.Text = ""
            Password.Text = ""
            User.SetFocus
        Else
            If rs.Fields("password") <> Password.Text Then
                MsgBox "用户名和密码不匹配！", vbOKOnly, "警告"
                User.Text = ""
                Password.Text = ""
                User.SetFocus
            Else
                Unload frmlogin
                frmmain.Show
            End If
        End If
    End If
End Sub

Private Sub CancelButton_Click()
    Unload Me
End Sub

Private Sub user_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then
        Password.SetFocus
    End If
End Sub

Private Sub password_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then
        OkButton_Click
    End If
End Sub