adminlogin.frm

感觉还可以了 大家看看 指点下 有什么不足的地方,大家多多指教啊

VERSION 5.00
Begin VB.Form AdminLogin 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "管理员登陆"
   ClientHeight    =   3465
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   4080
   Icon            =   "AdminLogin.frx":0000
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3465
   ScaleWidth      =   4080
   StartUpPosition =   3  '窗口缺省
   Begin VB.Frame Frame1 
      Height          =   3375
      Left            =   120
      TabIndex        =   0
      Top             =   0
      Width           =   3855
      Begin VB.CommandButton Command2 
         Cancel          =   -1  'True
         Caption         =   "取消"
         Height          =   495
         Left            =   2040
         TabIndex        =   4
         Top             =   2640
         Width           =   1455
      End
      Begin VB.CommandButton Command1 
         Caption         =   "登录"
         Default         =   -1  'True
         Height          =   495
         Left            =   360
         TabIndex        =   3
         Top             =   2640
         Width           =   1455
      End
      Begin VB.TextBox User 
         Appearance      =   0  'Flat
         BeginProperty Font 
            Name            =   "Times New Roman"
            Size            =   9
            Charset         =   0
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   315
         Left            =   360
         TabIndex        =   1
         Text            =   "mincer"
         Top             =   1320
         Width           =   3135
      End
      Begin VB.TextBox Pass 
         Appearance      =   0  'Flat
         BeginProperty Font 
            Name            =   "Times New Roman"
            Size            =   9
            Charset         =   0
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   315
         IMEMode         =   3  'DISABLE
         Left            =   360
         PasswordChar    =   "*"
         TabIndex        =   2
         Text            =   "1"
         Top             =   2040
         Width           =   3135
      End
      Begin VB.Label Label2 
         Caption         =   "用户名："
         Height          =   255
         Left            =   360
         TabIndex        =   7
         Top             =   1080
         Width           =   1215
      End
      Begin VB.Label Label3 
         Caption         =   "密码："
         Height          =   255
         Left            =   360
         TabIndex        =   6
         Top             =   1800
         Width           =   735
      End
      Begin VB.Label Label1 
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "财务管理系统"
         BeginProperty Font 
            Name            =   "隶书"
            Size            =   21.75
            Charset         =   134
            Weight          =   700
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H80000002&
         Height          =   495
         Left            =   360
         TabIndex        =   5
         Top             =   360
         Width           =   3135
      End
   End
End
Attribute VB_Name = "AdminLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    Dim sql As String
    Dim rs As New ADODB.Recordset
    
    If User.Text = "" Then      '保证用户名和密码都填写
        MsgBox "用户名不能为空！", vbCritical
        User.SetFocus
        Exit Sub
    End If
    If Pass.Text = "" Then
        MsgBox "密码不能为空！", vbCritical
        Pass.SetFocus
        Exit Sub
    End If
    If DbHandle.DbConnection Then
        sql = "TBL_ADMIN"       '用SQL语句判断是否是合法管理员
        rs.CursorType = adOpenDynamic
        rs.LockType = adLockOptimistic
        rs.Filter = "ADMIN_ID='" & User.Text & "' AND ADMIN_PASSWORD='" & Pass.Text & "'"
        rs.Open sql, DbFinance
        If DbHandle.resultcount(rs) <> 1 Then       '不存在管理员记录提示错误信息并且退出系统
            MsgBox "用户名或密码错误！", vbExclamation
            rs.Close
            Set rs = Nothing
            DbHandle.DbClose
            End
        End If
        DbHandle.DbClose
        MainForm.Show       '登陆成功显示主窗体
        Unload Me
    Else
        MsgBox "数据库错误！", vbExclamation
        DbHandle.DbClose
        End
    End If
End Sub

Private Sub Command2_Click()
    End     '点击取消退出管理系统
End Sub

Private Sub Form_Load()
    Me.Left = (Screen.Width - Me.ScaleWidth) / 2        '登陆窗体居中显示
    Me.Top = (Screen.Height - Me.ScaleHeight) / 2
End Sub

Private Sub Form_Unload(Cancel As Integer)
    On Error Resume Next
    DbHandle.DbClose
End Sub