frmlogin.frm

人事管理信息系统visual basic + my sql

VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "登录"
   ClientHeight    =   3225
   ClientLeft      =   30
   ClientTop       =   330
   ClientWidth     =   4950
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3225
   ScaleWidth      =   4950
   StartUpPosition =   2  '屏幕中心
   Tag             =   "Login"
   Begin VB.CommandButton cmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   360
      Left            =   2580
      TabIndex        =   4
      Tag             =   "Cancel"
      Top             =   1980
      Width           =   1140
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "确定"
      Default         =   -1  'True
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   360
      Left            =   960
      TabIndex        =   3
      Tag             =   "OK"
      Top             =   1980
      Width           =   1140
   End
   Begin VB.TextBox txtPassword 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   288
      IMEMode         =   3  'DISABLE
      Left            =   1788
      PasswordChar    =   "*"
      TabIndex        =   2
      Top             =   1488
      Width           =   2325
   End
   Begin VB.TextBox txtUserName 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   288
      Left            =   1788
      TabIndex        =   1
      Top             =   1092
      Width           =   2325
   End
   Begin VB.Label Label2 
      Caption         =   "版权提供：Software Corp."
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   372
      Index           =   0
      Left            =   240
      TabIndex        =   7
      Top             =   2640
      Width           =   4812
   End
   Begin VB.Label Label1 
      Caption         =   "人事管理信息系统"
      BeginProperty Font 
         Name            =   "华文彩云"
         Size            =   20.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H80000002&
      Height          =   615
      Index           =   1
      Left            =   840
      TabIndex        =   6
      Top             =   240
      Width           =   3675
   End
   Begin VB.Label Label2 
      Caption         =   "用户密码："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Index           =   1
      Left            =   540
      TabIndex        =   0
      Top             =   1500
      Width           =   1185
   End
   Begin VB.Label Label1 
      Caption         =   "用户姓名："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Index           =   0
      Left            =   585
      TabIndex        =   5
      Tag             =   "&User Name:"
      Top             =   1095
      Width           =   1140
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Public OK As Boolean
'记录确定次数
Dim miCount As Integer
Private Sub Form_Load()
    OK = False
    miCount = 0
End Sub



Private Sub cmdCancel_Click()
    OK = False
    Me.Hide
End Sub


Private Sub cmdOK_Click()
    Dim txtSQL As String
    Dim mrc As ADODB.Recordset
    Dim MsgText As String
    '变量定义 txtSQL是用来存放SQL语句，MsgText存放返回信息
    UserName = ""
    If Trim(txtUserName.Text = "") Then
    '判断用户名输入是否为空
        MsgBox "没有这个用户，请重新输入用户名！", vbOKOnly + vbExclamation, "警告"
        txtUserName.SetFocus
    Else
        txtSQL = "select * from Manager where username = '" & txtUserName.Text & "'"
        '对所输入的用户名进行查询
        Set mrc = ExecuteSQL(txtSQL, MsgText)
       ' MsgBox MsgText
        If mrc.EOF = True Then
            MsgBox "没有这个用户，请重新输入用户名!", vbOKOnly + vbExclamation, "警告"
            txtUserName.SetFocus
        Else
            If Trim(mrc.Fields(1)) = Trim(txtPassword.Text) Then
            '判断密码输入正确性
                OK = True
                Level = mrc.Fields(2)
                '获取用户的级别
                mrc.Close
                Me.Hide
                UserName = Trim(txtUserName.Text)
                PWD = Trim(txtPassword.Text)
                '记录用户名和密码到全局变量
            Else
                MsgBox "输入密码不正确，请重新输入！", vbOKOnly + vbExclamation, "警告"
                txtPassword.SetFocus
                txtPassword.Text = ""
            End If
        End If
    End If
    miCount = miCount + 1
    If miCount = 3 Then
    '记录密码输入的次数，累计到3此则自动结束程序
        Me.Hide
    End If
    Exit Sub
End Sub