frmlogin.frm

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VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   1  'Fixed Single
   ClientHeight    =   2685
   ClientLeft      =   3495
   ClientTop       =   3060
   ClientWidth     =   4935
   ControlBox      =   0   'False
   Icon            =   "frmLogin.frx":0000
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2685
   ScaleWidth      =   4935
   StartUpPosition =   2  '屏幕中心
   Begin VB.PictureBox Picture1 
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      ForeColor       =   &H80000008&
      Height          =   2565
      Left            =   60
      ScaleHeight     =   2535
      ScaleWidth      =   4785
      TabIndex        =   1
      Top             =   60
      Width           =   4815
      Begin VB.CheckBox chk 
         Appearance      =   0  'Flat
         BackColor       =   &H80000005&
         Caption         =   "登陆后查看库存报警"
         ForeColor       =   &H80000008&
         Height          =   210
         Left            =   2580
         TabIndex        =   7
         Top             =   2280
         Width           =   1995
      End
      Begin VB.ComboBox cobUser 
         Appearance      =   0  'Flat
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   330
         Left            =   2100
         Style           =   2  'Dropdown List
         TabIndex        =   0
         Top             =   480
         Width           =   2205
      End
      Begin VB.TextBox txtPWD 
         Appearance      =   0  'Flat
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   285
         IMEMode         =   3  'DISABLE
         Left            =   2100
         PasswordChar    =   "*"
         TabIndex        =   2
         Top             =   1020
         Width           =   2205
      End
      Begin Manage.xpcmdbutton cmdCancel 
         Cancel          =   -1  'True
         Height          =   405
         Left            =   2940
         TabIndex        =   3
         Top             =   1710
         Width           =   1335
         _ExtentX        =   2355
         _ExtentY        =   714
         Caption         =   "取  消"
         BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
      End
      Begin Manage.xpcmdbutton cmdEnter 
         Height          =   405
         Left            =   990
         TabIndex        =   4
         Top             =   1710
         Width           =   1275
         _ExtentX        =   2249
         _ExtentY        =   714
         Caption         =   "确  定"
         BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
      End
      Begin VB.Image Image1 
         Height          =   600
         Left            =   60
         Picture         =   "frmLogin.frx":000C
         Stretch         =   -1  'True
         Top             =   90
         Width           =   585
      End
      Begin VB.Label Label2 
         BackStyle       =   0  'Transparent
         Caption         =   "密  码"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   210
         Left            =   1200
         TabIndex        =   6
         Top             =   1050
         Width           =   630
      End
      Begin VB.Label Label1 
         BackStyle       =   0  'Transparent
         Caption         =   "用  户"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   210
         Left            =   1170
         TabIndex        =   5
         Top             =   540
         Width           =   630
      End
      Begin VB.Line Line1 
         BorderColor     =   &H00808080&
         BorderWidth     =   2
         X1              =   210
         X2              =   4560
         Y1              =   1530
         Y2              =   1530
      End
   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 LoopIn As Integer

Private Sub cmdCancel_Click()
  Unload Me
End Sub

Private Sub cmdEnter_Click()
If cobUser.ListIndex = -1 Then Exit Sub

Dim Rst As ADODB.Recordset
Dim SQL As String

Set Rst = New ADODB.Recordset
Rst.CursorLocation = adUseClient
SQL = "select purview from [user] where username='" & cobUser.Text & "' and password='" & txtPWD.Text & "'"
Rst.Open SQL, Conn, adOpenDynamic, adLockReadOnly, adCmdText
If Rst.EOF Then
  Rst.Close
  Set Rst = Nothing
  LoopIn = LoopIn + 1
  If LoopIn = 3 Then MsgBox "您已三次输入密码不正确，应用程序将退出！", 64: Unload Me: Exit Sub
  MsgBox "您输入的密码不正确，不能登陆！", 64
  txtPWD.SelStart = 0
  txtPWD.SelLength = Len(txtPWD.Text)
  txtPWD.SetFocus
  Exit Sub
End If
If Rst.Fields(0) <> "系统管理员" Then MsgBox "您没有使用系统的权限，程序即将退出。", 64: Unload Me: Exit Sub
Rst.Close
Set Rst = Nothing
UserName = cobUser.Text

If chk.Value = 1 Then ViewStock = True
Unload Me
frmMain.Show
End Sub

Private Sub cobUser_KeyPress(KeyAscii As Integer)
  If KeyAscii = 13 Then txtPWD.SetFocus
End Sub

Private Sub Form_Load()
Dim Rst As ADODB.Recordset
Dim I As Integer

Set Rst = New ADODB.Recordset
Rst.CursorLocation = adUseClient
Rst.Open "select username from [user]", Conn, adOpenStatic, adLockReadOnly, adCmdText
If Rst.EOF Then Exit Sub

For I = 1 To Rst.RecordCount
  cobUser.AddItem Rst.Fields(0)
  Rst.MoveNext
Next

Rst.Close
Set Rst = Nothing

End Sub

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

Private Sub txtPWD_KeyPress(KeyAscii As Integer)
  If KeyAscii = 13 Then cmdEnter_Click
End Sub