frmsyslogon.frm

工资管理系统

VERSION 5.00
Begin VB.Form SystemLogon 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "用户登录"
   ClientHeight    =   2235
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   4080
   ControlBox      =   0   'False
   LinkTopic       =   "Form1"
   ScaleHeight     =   2235
   ScaleWidth      =   4080
   ShowInTaskbar   =   0   'False
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox txtPassWord 
      Height          =   300
      IMEMode         =   3  'DISABLE
      Left            =   1436
      PasswordChar    =   "*"
      TabIndex        =   7
      Top             =   727
      Width           =   1815
   End
   Begin VB.TextBox txtUserName 
      Height          =   300
      Left            =   1436
      TabIndex        =   6
      Top             =   352
      Width           =   1815
   End
   Begin VB.ComboBox cmbStatus 
      Height          =   300
      ItemData        =   "frmSysLogon.frx":0000
      Left            =   1429
      List            =   "frmSysLogon.frx":000A
      Style           =   2  'Dropdown List
      TabIndex        =   5
      Top             =   1117
      Width           =   1815
   End
   Begin VB.CommandButton cmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   300
      Left            =   2186
      TabIndex        =   1
      Top             =   1582
      Width           =   735
   End
   Begin VB.CommandButton cmdOk 
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   300
      Left            =   1151
      TabIndex        =   0
      Top             =   1582
      Width           =   735
   End
   Begin VB.Label Label3 
      AutoSize        =   -1  'True
      Caption         =   "身  份"
      Height          =   180
      Left            =   829
      TabIndex        =   4
      Top             =   1177
      Width           =   540
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "口  令"
      Height          =   180
      Left            =   829
      TabIndex        =   3
      Top             =   787
      Width           =   540
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "用户名"
      Height          =   180
      Left            =   829
      TabIndex        =   2
      Top             =   412
      Width           =   540
   End
End
Attribute VB_Name = "SystemLogon"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim objRs As Recordset
Private Sub cmdCancel_Click()
    '请求用户确认是否真的退出系统登录
    n = MsgBox("你选择了退出系统登录，退出将不能启动管理系统！" & vbCrLf _
              & "是否真的退出？", vbYesNo, "登录验证")
    If n = vbYes Then
        Unload Me               '卸载登录窗体
    End If
End Sub

Private Sub cmdOk_Click()
    On Error GoTo DealError
    '检查是否存在指定身份用户
    objRs.MoveFirst
    objRs.Find "用户名='" & txtUserName & "'"
    If objRs.EOF Then
        MsgBox "用户名错误！", vbOKOnly + vbCritical, "系统登录"
        txtUserName.SetFocus
    Else
        '检查密码是否正确
        If objRs!口令 <> txtPassWord Then
            MsgBox "口令错误！", vbOKOnly + vbCritical, "系统登录"
            txtPassWord.SetFocus
        Else
            '检查身份是否正确
            If objRs!身份 <> cmbStatus Then
                MsgBox "身份错误！", vbOKOnly + vbCritical, "系统登录"
                cmbStatus.SetFocus
            Else
                ThisUserName = txtUserName
                ThisPassword = txtPassWord
                ThisStatus = cmbStatus
                Unload Me               '卸载登录窗体
                SystemMain.Show
            End If
        End If
    End If
     Exit Sub
DealError:
    msg = "程序执行出错，错误信息如下：" & vbCrLf & Err.Description
    ShowError msg
End Sub

Private Sub Form_Load()
'    On Error GoTo DealError
    Dim objCn As New Connection
    '建立数据库连接
    strcn = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
                    "Data Source=" & App.Path & "\数据库\工资管理.mdb"
     objCn.ConnectionString = strcn
     objCn.Open
        
    '创建RecordSet对象，获取系统用户信息
    Set objRs = New Recordset
    Set objRs.ActiveConnection = objCn
    objRs.CursorLocation = adUseClient
    strsql = "SELECT * FROM 系统用户"
    objRs.Open strsql
    objRs.ActiveConnection = Nothing    '取消数据库连接
    objCn.Close                         '关闭数据库连接
    Set objCn = Nothing                 '释放连接对象
    
    '设置默认身份
    cmbStatus.ListIndex = 0
    Exit Sub
DealError:
    msg = "程序执行出错，错误信息如下：" & vbCrLf & Err.Description
    ShowError msg
End Sub

Private Sub Form_Unload(Cancel As Integer)
    Set objRs = Nothing
End Sub