frmuserupdate.frm

用vb实现的图书管理系统

VERSION 5.00
Begin VB.Form frmUserUpdate 
   Caption         =   "修改用户"
   ClientHeight    =   4680
   ClientLeft      =   4605
   ClientTop       =   3360
   ClientWidth     =   5460
   LinkTopic       =   "Form4"
   ScaleHeight     =   4680
   ScaleWidth      =   5460
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   495
      Left            =   2760
      TabIndex        =   9
      Top             =   3840
      Width           =   1335
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   495
      Left            =   840
      TabIndex        =   8
      Top             =   3840
      Width           =   1335
   End
   Begin VB.TextBox txtOldPassword 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2640
      PasswordChar    =   "*"
      TabIndex        =   7
      Top             =   1320
      Width           =   1575
   End
   Begin VB.TextBox txtNewPassword 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2640
      PasswordChar    =   "*"
      TabIndex        =   6
      Top             =   2160
      Width           =   1575
   End
   Begin VB.TextBox txtPasswordConfirm 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2640
      PasswordChar    =   "*"
      TabIndex        =   5
      Top             =   3000
      Width           =   1575
   End
   Begin VB.TextBox txtName 
      Height          =   375
      Left            =   2640
      TabIndex        =   4
      Top             =   480
      Width           =   1575
   End
   Begin VB.Label Label4 
      Caption         =   "原密码"
      Height          =   375
      Left            =   720
      TabIndex        =   3
      Top             =   1320
      Width           =   1335
   End
   Begin VB.Label Label3 
      Caption         =   "新密码"
      Height          =   375
      Left            =   720
      TabIndex        =   2
      Top             =   2160
      Width           =   1335
   End
   Begin VB.Label Label2 
      Caption         =   "确认新密码"
      Height          =   375
      Left            =   720
      TabIndex        =   1
      Top             =   3000
      Width           =   1335
   End
   Begin VB.Label Label1 
      Caption         =   "用户名"
      Height          =   375
      Left            =   720
      TabIndex        =   0
      Top             =   480
      Width           =   1335
   End
End
Attribute VB_Name = "frmUserUpdate"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
Dim conn As ADODB.Connection
Dim rs As New ADODB.Recordset
Dim sql As String

Dim N As Boolean
N = True
If Trim(txtName.Text) = "" Then
MsgBox "用户名不能为空", vbOKOnly + vbExclamation, ""
txtName.SetFocus
N = False
End If
If Trim(txtOldPassword.Text) = "" Then
MsgBox "原密码不能为空", vbOKOnly + vbExclamation, ""
txtOldPassword.SetFocus
N = False
End If
If N = True Then
Set conn = New ADODB.Connection

conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=book.mdb;Persist Security Info=False"
conn.Open

sql = "select*from UserInfo where Username = '"
sql = sql + txtName.Text + "' and Password='" + txtOldPassword.Text + "'"
Set rs = conn.Execute(sql)
If rs.EOF Or rs.BOF Then
 MsgBox "用户名或口令错误，请检查！"
 N = False
 ElseIf N = True Then
If Trim(txtNewPassword.Text) = "" Then
MsgBox "新密码不能为空", vbOKOnly + vbExclamation, ""
txtNewPassword.SetFocus
N = False
End If
If Trim(txtNewPassword.Text <> txtPasswordConfirm) Then
MsgBox "新密码不一致", vbOKOnly + vbExclamation, ""
txtNewPassword.Text = ""
txtPasswordConfirm.Text = ""
N = False
End If
rs.Close
End If
If N = True Then

rs.Open sql, conn, adOpenKeyset, adLockPessimistic
rs.Fields(2) = txtNewPassword.Text
rs.Update
rs.Close
MsgBox "修改用户成功!"


End If
End If

End Sub

Private Sub Command2_Click()
Unload Me

End Sub