MembershipUser.LastPasswordChangedDate Properti

Referensi

Definisi

Ruang nama:: System.Web.Security

Rakitan:: System.Web.dll

Rakitan:: System.Web.ApplicationServices.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan tanggal dan waktu saat kata sandi pengguna keanggotaan terakhir diperbarui.

public:
 virtual property DateTime LastPasswordChangedDate { DateTime get(); };

public virtual DateTime LastPasswordChangedDate { get; }

member this.LastPasswordChangedDate : DateTime

Public Overridable ReadOnly Property LastPasswordChangedDate As DateTime

Nilai Properti

DateTime

Tanggal dan waktu saat kata sandi pengguna keanggotaan terakhir diperbarui.

Contoh

Contoh kode berikut menunjukkan halaman masuk yang menunjukkan kata sandi telah kedaluwarsa setelah jumlah hari tertentu. LastPasswordChangedDate Jika lebih awal dari tanggal dan waktu saat ini dikurangi jumlah hari yang ditentukan untuk kedaluwarsa kata sandi, maka pengguna diarahkan untuk mengubah kata sandi mereka.

Penting

Contoh ini berisi kotak teks yang menerima input pengguna, yang merupakan potensi ancaman keamanan. Secara default, ASP.NET halaman Web memvalidasi bahwa input pengguna tidak menyertakan elemen skrip atau HTML. Untuk informasi selengkapnya, lihat Gambaran Umum Eksploitasi Skrip.

<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Security" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

double passwordExpiresDays = 90;

public void Login_OnClick(object sender, EventArgs args)
{
   MembershipUser u = Membership.GetUser(UsernameTextbox.Text);

   if (u == null)
   {
     Msg.Text = "Invalid user name. Please check your user name and try again.";
     return;
   }

   if (Membership.ValidateUser(UsernameTextbox.Text, PasswordTextbox.Text))
   {
      if (u.LastPasswordChangedDate.AddDays(passwordExpiresDays) < DateTime.Now)
      {
        Msg.Text = "Your password has expired. Please change your password to a new value.";
        UsernameLabel.Text = UsernameTextbox.Text;
        ChangePasswordPanel.Visible = true;
        LoginPanel.Visible = false;
      }
      else
      {
        FormsAuthentication.RedirectFromLoginPage(UsernameTextbox.Text, NotPublicCheckBox.Checked);
      }
   }
   else
   {
     Msg.Text = "Invalid password. Please check your password and try again.";
   }
}

public void ChangePassword_OnClick(object sender, EventArgs args)
{
  // Update the password.

  MembershipUser u = Membership.GetUser(UsernameLabel.Text);

  if (u.ChangePassword(OldPasswordTextbox.Text, NewPasswordTextbox.Text))
  {
    Msg.Text = "Password changed.";
    ChangePasswordPanel.Visible = false;
    LoginPanel.Visible = true;
  }
  else
  {
    Msg.Text = "Password change failed. Please re-enter your values and try again.";
  }
}

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
  <title>Login</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Login</h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><br />

  <asp:Panel id="LoginPanel" runat="Server">

    Username: <asp:Textbox id="UsernameTextbox" runat="server" /><br />
    Password: <asp:Textbox id="PasswordTextbox" runat="server" TextMode="Password" /><br />
 
    <asp:Button id="LoginButton" Text="Login" OnClick="Login_OnClick" runat="server" />
    <asp:CheckBox id="NotPublicCheckBox" runat="server" /> Check here if this is <span style="text-decoration:underline">not</span> a public computer.

  </asp:Panel>

  <asp:Panel id="ChangePasswordPanel" runat="Server" Visible="False">
    <table cellpadding="3" border="0">
      <tr>
        <td>Username:</td>
        <td><b><asp:Label id="UsernameLabel" runat="server" /></b></td>
        <td></td>
      </tr>
      <tr>
        <td>Old Password:</td>
        <td><asp:Textbox id="OldPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="OldPasswordRequiredValidator" runat="server"
                                        ControlToValidate="OldPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Password:</td>
        <td><asp:Textbox id="NewPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordRequiredValidator" runat="server"
                                        ControlToValidate="NewPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Confirm Password:</td>
        <td><asp:Textbox id="PasswordConfirmTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordConfirmRequiredValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" />
            <asp:CompareValidator id="PasswordConfirmCompareValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ControlToCompare="PasswordTextBox"
                                        ErrorMessage="Confirm password must match password." />
        </td>
      </tr>
      <tr>
        <td></td>
        <td><asp:Button id="ChangePasswordButton" Text="Change Password" 
                        OnClick="ChangePassword_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

</form>
<br />

</body>
</html>

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Web.Security" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

Dim passwordExpiresDays As Double = 90

Public Sub Login_OnClick(sender As Object, args As EventArgs)

   Dim u As MembershipUser = Membership.GetUser(UsernameTextbox.Text)

   If u Is Nothing Then
     Msg.Text = "Invalid user name. Please check your user name and try again."
     Return
   End If

   If Membership.ValidateUser(UsernameTextbox.Text, PasswordTextbox.Text) Then
      If u.LastPasswordChangedDate.AddDays(passwordExpiresDays) < DateTime.Now Then
        Msg.Text = "Your password has expired. Please change your password to a new value."
        UsernameLabel.Text = UsernameTextbox.Text
        ChangePasswordPanel.Visible = True
        LoginPanel.Visible = False
      Else
        FormsAuthentication.RedirectFromLoginPage(UsernameTextbox.Text, NotPublicCheckBox.Checked)
      End If
   Else
     Msg.Text = "Invalid password. Please check your password and try again."
   End If
End Sub

Public Sub ChangePassword_OnClick(sender As Object, args As EventArgs)

  ' Update the password.

  Dim u As MembershipUser = Membership.GetUser(UsernameLabel.Text)

  If u.ChangePassword(OldPasswordTextbox.Text, NewPasswordTextbox.Text) Then
    Msg.Text = "Password changed."
    ChangePasswordPanel.Visible = False
    LoginPanel.Visible = True
  Else
    Msg.Text = "Password change failed. Please re-enter your values and try again."
  End If
End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
  <title>Login</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Login</h3>

  <asp:Label id="Msg" ForeColor="maroon" runat="server" /><br />

  <asp:Panel id="LoginPanel" runat="Server">

    Username: <asp:Textbox id="UsernameTextbox" runat="server" /><br />
    Password: <asp:Textbox id="PasswordTextbox" runat="server" TextMode="Password" /><br />
 
    <asp:Button id="LoginButton" Text="Login" OnClick="Login_OnClick" runat="server" />
    <asp:CheckBox id="NotPublicCheckBox" runat="server" /> Check here if this is <span style="text-decoration:underline">not</span> a public computer.

  </asp:Panel>

  <asp:Panel id="ChangePasswordPanel" runat="Server" Visible="False">
    <table cellpadding="3" border="0">
      <tr>
        <td>Username:</td>
        <td><b><asp:Label id="UsernameLabel" runat="server" /></b></td>
        <td></td>
      </tr>
      <tr>
        <td>Old Password:</td>
        <td><asp:Textbox id="OldPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="OldPasswordRequiredValidator" runat="server"
                                        ControlToValidate="OldPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Password:</td>
        <td><asp:Textbox id="NewPasswordTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordRequiredValidator" runat="server"
                                        ControlToValidate="NewPasswordTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /></td>
      </tr>
      <tr>
        <td>Confirm Password:</td>
        <td><asp:Textbox id="PasswordConfirmTextbox" runat="server" TextMode="Password" /></td>
        <td><asp:RequiredFieldValidator id="PasswordConfirmRequiredValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" />
            <asp:CompareValidator id="PasswordConfirmCompareValidator" runat="server"
                                        ControlToValidate="PasswordConfirmTextbox" ForeColor="red"
                                        Display="Static" ControlToCompare="PasswordTextBox"
                                        ErrorMessage="Confirm password must match password." />
        </td>
      </tr>
      <tr>
        <td></td>
        <td><asp:Button id="ChangePasswordButton" Text="Change Password" 
                        OnClick="ChangePassword_OnClick" runat="server" /></td>
      </tr>
    </table>
  </asp:Panel>

</form>
<br />

</body>
</html>

Keterangan

mengatur , , , dan LastPasswordChangedDate tanggal ke tanggal dan waktu yang sama ketika pengguna keanggotaan dibuat oleh CreateUser metode . LastActivityDate LastLoginDate CreationDate SqlMembershipProvider

Berlaku untuk

Lihat juga

Pengantar Keanggotaan ASP.NET

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