frmlogin.frm

用VB＋Access实现的企业人事工资管理系统。

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form frmLogin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "用户登录"
   ClientHeight    =   2895
   ClientLeft      =   1245
   ClientTop       =   1230
   ClientWidth     =   3915
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   2895
   ScaleWidth      =   3915
   ShowInTaskbar   =   0   'False
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   330
      Left            =   720
      Top             =   2520
      Visible         =   0   'False
      Width           =   1575
      _ExtentX        =   2778
      _ExtentY        =   582
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   2
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   3
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "DSN=personnel"
      OLEDBString     =   ""
      OLEDBFile       =   ""
      DataSourceName  =   "personnel"
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   "user"
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   375
      Left            =   2280
      TabIndex        =   4
      Top             =   2040
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   375
      Left            =   480
      TabIndex        =   3
      Top             =   2040
      Width           =   1215
   End
   Begin VB.TextBox txtPWD 
      DataSource      =   "Adodc1"
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   1920
      PasswordChar    =   "*"
      TabIndex        =   2
      Top             =   1200
      Width           =   1695
   End
   Begin VB.TextBox txtUserName 
      Height          =   375
      Left            =   1920
      TabIndex        =   0
      Top             =   240
      Width           =   1695
   End
   Begin VB.Label Label2 
      Caption         =   "请输入密码："
      Height          =   375
      Left            =   360
      TabIndex        =   5
      Top             =   1320
      Width           =   1335
   End
   Begin VB.Label Label1 
      Caption         =   "请输入用户名："
      Height          =   375
      Left            =   360
      TabIndex        =   1
      Top             =   360
      Width           =   1455
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'判断用户名是否存在
Private Function nameExist(name As String) As Boolean
Dim i As Integer
i = 0
Adodc1.Recordset.MoveFirst
While (Not Adodc1.Recordset.EOF)
    If Adodc1.Recordset("username") = name Then
        i = i + 1
    End If
    Adodc1.Recordset.MoveNext
Wend
If i = 0 Then
    nameExist = False
Else
    nameExist = True
End If
End Function
'判断密码是否与姓名相符
Private Function rightPWD(name As String, PWD As String) As Boolean
name = "'" & name & "'"
Adodc1.Recordset.MoveFirst
Adodc1.Recordset.Find "username=" & name
If Adodc1.Recordset("pwd") = PWD Then
    rightPWD = True
Else
    rightPWD = False
End If
End Function

Private Sub Command1_Click()
If (txtUserName.Text <> "") And (txtPWD.Text <> "") Then
    If nameExist(txtUserName.Text) Then
        If rightPWD(txtUserName.Text, txtPWD.Text) Then
            '标识已有用户登录
            userAvailable = True
            MsgBox "用户登录成功！", vbOKOnly + vbInformation, "提示信息"
            '将当前用户名显示在主窗体标题栏
            FrmMain.Caption = "企业人事信息管理系统      用户：" & txtUserName.Text
            FrmMain.A11.Enabled = True
            FrmMain.A12.Enabled = True
            Unload Me
        Else
            MsgBox "用户名与密码不符，请重新输入！", vbOKOnly + vbExclamation, "提示信息"
        End If
    Else
        MsgBox "用户不存在，请重新输入用户名！", vbOKOnly + vbExclamation, "提示信息"
    End If
Else
    MsgBox "请输入完整信息!", vbOKOnly + vbExclamation, "提示信息"
End If
End Sub

Private Sub Command2_Click()
Unload Me
End Sub