frmlogin.frm

适合课程设计

VERSION 5.00
Begin VB.Form frmLogin 
   Caption         =   "登录"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   MaxButton       =   0   'False
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2520
      TabIndex        =   6
      Top             =   2160
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   600
      TabIndex        =   5
      Top             =   2160
      Width           =   1215
   End
   Begin VB.TextBox Text2 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2040
      PasswordChar    =   "*"
      TabIndex        =   4
      Top             =   1560
      Width           =   1695
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   2040
      TabIndex        =   3
      Top             =   960
      Width           =   1695
   End
   Begin VB.Label Label3 
      Caption         =   "用户密码"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   480
      TabIndex        =   2
      Top             =   1560
      Width           =   1335
   End
   Begin VB.Label Label2 
      Caption         =   "用户名"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   720
      TabIndex        =   1
      Top             =   1080
      Width           =   855
   End
   Begin VB.Label Label1 
      Caption         =   "企事业单位人员管理系统"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   18
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   -1  'True
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   360
      TabIndex        =   0
      Top             =   360
      Width           =   3975
   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
Dim miCount As Integer
Dim UserName As String


Private Sub Command1_Click()
'用来存放SQL语句
    Dim txtSQL As String
'用来存放记录集对象
    Dim mrc As New ADODB.Recordset
'用来存放返回信息
    Dim MsgText As String
    UserName = ""
'判断输入用户名是否为空
    If Trim(Text1.Text = "") Then
        MsgBox "没有这个用户，请重新输入用户名！", vbOKOnly + vbExclamation, "警告"
        Text1.SetFocus
    Else
        '查询指定用户名记录
        txtSQL = "select * from user_Info where user_ID='" & Text1.Text & "'"
        '执行查询语句
        Set mrc = ExecuteSQL(txtSQL, MsgText)
        'mrc.Open
        If mrc.EOF = True Then
             MsgBox "没有这个用户，请重新输入用户名！", vbOKOnly + vbExclamation, "警告"
             Text1.SetFocus
        Else
            '判断输入密码是否正确
            If Trim(mrc.Fields(1)) = Trim(Text2.Text) Then
            Me.Hide
                OK = True
                mrc.Close
                
                UserName = Trim(Text1.Text)
                frmMain.Show
            Else
                MsgBox "输入密码不正确，请重新输入！", vbOKOnly + vbExclamation, "警告"
                Text2.SetFocus
                Text2.Text = ""
            End If
        End If
    End If
    '记载输入密码次数
    miCount = miCount + 1
    If miCount = 3 Then
        Me.Hide
    End If
    Exit Sub
End Sub

Private Sub Command2_Click()
    OK = False
    Me.Hide
End Sub

Private Sub Form_Load()
        OK = False
    miCount = 0
End Sub