frmlogin.frm

一款非常不错的售楼管理系统

VERSION 5.00
Begin VB.Form FrmLogin 
   BackColor       =   &H00C0FFC0&
   Caption         =   "系统登录"
   ClientHeight    =   2580
   ClientLeft      =   2850
   ClientTop       =   3495
   ClientWidth     =   5025
   LinkTopic       =   "Frmlogin"
   ScaleHeight     =   2580
   ScaleWidth      =   5025
   StartUpPosition =   1  '所有者中心
   Begin VB.TextBox txtname 
      Height          =   345
      Left            =   1920
      TabIndex        =   1
      Top             =   375
      Width           =   1965
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "确认登录"
      Height          =   390
      Left            =   840
      MaskColor       =   &H00E0E0E0&
      TabIndex        =   4
      Top             =   1620
      Width           =   1140
   End
   Begin VB.CommandButton cmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消登录"
      Height          =   390
      Left            =   2880
      TabIndex        =   5
      Top             =   1620
      Width           =   1140
   End
   Begin VB.TextBox txtpwd 
      Height          =   345
      IMEMode         =   3  'DISABLE
      Left            =   1920
      PasswordChar    =   "*"
      TabIndex        =   3
      Top             =   885
      Width           =   1965
   End
   Begin VB.Label lblLabels 
      AutoSize        =   -1  'True
      BackColor       =   &H00C0FFC0&
      Caption         =   "用户名称："
      Height          =   180
      Index           =   0
      Left            =   960
      TabIndex        =   0
      Top             =   390
      Width           =   900
   End
   Begin VB.Label lblLabels 
      AutoSize        =   -1  'True
      BackColor       =   &H00C0FFC0&
      Caption         =   "密    码："
      Height          =   180
      Index           =   1
      Left            =   960
      TabIndex        =   2
      Top             =   900
      Width           =   900
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim cnt As Integer                     '记录确定次数

Private Sub cmdcancel_Click()
conn.Close
Set conn = Nothing
End
End Sub

Private Sub cmdok_Click()
Dim sql As String
Dim answer As String
Dim rs_login As New ADODB.Recordset
If Trim(txtname.Text) = "" Then            '判断输入的用户名是否为空
  answer = MsgBox("没有这个用户", vbYesNo + vbExclamation, "系统提示")
  If answer = vbYes Then
         txtpwd.Text = ""
         txtname.SetFocus
  Else
         Unload Me
  End If
   
Else
   sql = "select * from 系统管理 where czyh='" & txtname.Text & "'"
   rs_login.Open sql, conn, adOpenKeyset, adLockPessimistic
   If rs_login.EOF = True Then
      answer = MsgBox("没有这个用户", vbYesNo + vbExclamation, "系统提示")
  If answer = vbYes Then
         txtpwd.Text = ""
         txtname.SetFocus
  Else
         Unload Me
  End If
   Else                                  '检验密码是否正确
      If Trim(rs_login.Fields(1)) = Trim(txtpwd.Text) Then
          userID = txtname.Text
          username = rs_login.Fields(2)
          rs_login.Close
          Unload Me
          frmmain.Show
      Else
        answer = MsgBox("密码不正确", vbYesNo + vbExclamation, "系统提示")
         If answer = vbYes Then
         txtpwd.Text = ""
         txtpwd.SetFocus
         Else
         Unload Me
         End If
      End If
   End If
End If
cnt = cnt + 1
If cnt = 3 Then
   Unload Me
End If
End Sub

Private Sub Form_Load()
Dim connectionstring As String
connectionstring = "provider=Microsoft.Jet.oledb.4.0;" & _
                   "data source= " & App.Path & "\house.mdb"
conn.Open connectionstring
cnt = 0
End Sub


Private Sub txtname_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
cmdOK.Default = True
txtpwd.SetFocus
End If
End Sub