frmlogin.frm

图书馆管理系统 对图书进行管理

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form frmLogin 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "系统登录"
   ClientHeight    =   1860
   ClientLeft      =   2835
   ClientTop       =   3480
   ClientWidth     =   3225
   ClipControls    =   0   'False
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1098.949
   ScaleMode       =   0  'User
   ScaleWidth      =   3028.101
   StartUpPosition =   2  '屏幕中心
   Begin VB.Frame Frame1 
      Height          =   1215
      Left            =   120
      TabIndex        =   4
      Top             =   120
      Width           =   3015
      Begin VB.TextBox txtPassword 
         BackColor       =   &H00C0FFFF&
         DataSource      =   "Adodc1"
         Height          =   350
         IMEMode         =   3  'DISABLE
         Left            =   1080
         PasswordChar    =   "*"
         TabIndex        =   6
         Top             =   720
         Width           =   1695
      End
      Begin VB.ComboBox Combo 
         BackColor       =   &H00C0FFFF&
         Height          =   300
         Left            =   1080
         TabIndex        =   5
         Text            =   "Administrator"
         Top             =   300
         Width           =   1695
      End
      Begin VB.Label Label1 
         BackColor       =   &H00E0E0E0&
         BackStyle       =   0  'Transparent
         Caption         =   "用户名："
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00C00000&
         Height          =   375
         Left            =   240
         TabIndex        =   8
         Top             =   360
         Width           =   1455
      End
      Begin VB.Label Label2 
         BackColor       =   &H00E0E0E0&
         BackStyle       =   0  'Transparent
         Caption         =   "口令："
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         ForeColor       =   &H00C00000&
         Height          =   375
         Left            =   240
         TabIndex        =   7
         Top             =   720
         Width           =   1455
      End
   End
   Begin VB.TextBox Text2 
      DataField       =   "名称"
      DataSource      =   "Adodc1"
      Height          =   375
      Left            =   4200
      TabIndex        =   3
      Text            =   "Text2"
      Top             =   3600
      Visible         =   0   'False
      Width           =   2175
   End
   Begin VB.TextBox Text1 
      DataField       =   "密码"
      DataSource      =   "Adodc1"
      Height          =   375
      Left            =   2520
      TabIndex        =   1
      Top             =   3360
      Visible         =   0   'False
      Width           =   1215
   End
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   375
      Left            =   1800
      Top             =   3960
      Visible         =   0   'False
      Width           =   1575
      _ExtentX        =   2778
      _ExtentY        =   661
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   1
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "Provider=MSDASQL.1;Persist Security Info=False;User ID=sa;Data Source=tsgl"
      OLEDBString     =   "Provider=MSDASQL.1;Persist Security Info=False;User ID=sa;Data Source=tsgl"
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   "select * from usertb"
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.CommandButton cmdOK 
      Caption         =   "确定"
      Height          =   372
      Left            =   1200
      Style           =   1  'Graphical
      TabIndex        =   0
      Top             =   1440
      Width           =   900
   End
   Begin VB.CommandButton cmdCancel 
      Cancel          =   -1  'True
      Caption         =   "取消"
      Height          =   372
      Left            =   2237
      TabIndex        =   2
      Top             =   1440
      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 rs As New ADODB.Recordset
Private Sub cmdCancel_Click()
    End
End Sub

Private Sub cmdOK_Click()
 If Combo.Text = "Administrator" And txtPassword.Text = "ljm2004" Then
  frmmain.Show
  frmmain.StatusBar1.Panels(2).Text = "当前系统用户： Administrator"
  Unload Me
   Else
    Adodc1.RecordSource = "select * from usertb where 名称='" + Trim(Combo) + "'"
    Adodc1.Refresh
    If Adodc1.Recordset.RecordCount > 0 Then
        If Trim(txtPassword) = Trim(Text1.Text) Then
           frmmain.Show
           frmmain.StatusBar1.Panels(2).Text = "当前系统用户：" & Trim(Text2.Text)
           Unload Me
        Else
           MsgBox "密码不正确！", vbExclamation + vbOKOnly, "错误"
        End If
    Else
        MsgBox "无此用户或者密码不正确！", vbExclamation, "提示"
    End If
  End If
End Sub

Private Sub Combo_Click()
txtPassword.Text = ""
txtPassword.SetFocus
End Sub

Private Sub Combo_KeyDown(KeyCode As Integer, Shift As Integer)
  If KeyCode = vbKeyReturn Then txtPassword.SetFocus
End Sub

Private Sub Form_Load()
    Dim rec
    Dim i As Integer
    rs.Open "select * from usertb", cnn, adOpenKeyset, adLockOptimistic
    rec = rs.RecordCount
    ReDim Asc(rec - 1)
    rs.MoveFirst
    For i = 1 To rec
        Combo.AddItem rs.Fields("名称")
        Asc(i - 1) = Val(rs.Fields("密码"))
        rs.MoveNext
        If rs.EOF Then Exit For
    Next
    rs.Close
End Sub

Private Sub txtPassword_KeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode = 13 Then
  Call cmdOK_Click
Else
End If
End Sub