MembershipUser.PasswordQuestion Eigenschap

Definitie

Naamruimte:
System.Web.Security
Assembly:
System.Web.dll
Assembly:
System.Web.ApplicationServices.dll

Hiermee haalt u de wachtwoordvraag voor de lidmaatschapsgebruiker op.

public:
 virtual property System::String ^ PasswordQuestion { System::String ^ get(); };
public virtual string PasswordQuestion { get; }
member this.PasswordQuestion : string
Public Overridable ReadOnly Property PasswordQuestion As String

Waarde van eigenschap

String

De wachtwoordvraag voor de lidmaatschapsgebruiker.

Voorbeelden

In het volgende codevoorbeeld wordt het wachtwoord van een gebruiker opnieuw ingesteld als het juiste wachtwoordantwoord wordt opgegeven. De PasswordQuestion voor de gebruiker wordt weergegeven als herinnering aan de gebruiker van het wachtwoordantwoord.

Important

Dit voorbeeld bevat een tekstvak dat gebruikersinvoer accepteert. Dit is een mogelijke beveiligingsrisico. Standaard valideren ASP.NET webpagina's dat gebruikersinvoer geen script- of HTML-elementen bevat. Zie Overzicht van Script Exploits voor meer informatie.

<%@ 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">

MembershipUser u;

public void Page_Load(object sender, EventArgs args)
{
  if (!Membership.EnablePasswordReset)
  {
    FormsAuthentication.RedirectToLoginPage();
  }

  Msg.Text = "";

  if (!IsPostBack)
  {
    Msg.Text = "Please supply a username.";
  }
  else
  {
    VerifyUsername();
  }
}


public void VerifyUsername()
{
    u = Membership.GetUser(UsernameTextBox.Text, false);

    if (u == null)
    {
      Msg.Text = "Username " + Server.HtmlEncode(UsernameTextBox.Text) + " not found. Please check the value and re-enter.";

      QuestionLabel.Text = "";
      QuestionLabel.Enabled = false;
      AnswerTextBox.Enabled = false;
      ResetPasswordButton.Enabled = false;
    }
    else
    {
      QuestionLabel.Text = u.PasswordQuestion;
      QuestionLabel.Enabled = true;
      AnswerTextBox.Enabled = true;
      ResetPasswordButton.Enabled = true;
    }
}

public void ResetPassword_OnClick(object sender, EventArgs args)
{
  string newPassword;
  u = Membership.GetUser(UsernameTextBox.Text, false);

  if (u == null)
  { 
    Msg.Text = "Username " + Server.HtmlEncode(UsernameTextBox.Text) + " not found. Please check the value and re-enter.";
    return;
  }

  try
  {
    newPassword = u.ResetPassword(AnswerTextBox.Text);
  }
  catch (MembershipPasswordException e)
  {
    Msg.Text = "Invalid password answer. Please re-enter and try again.";
    return;
  }
  catch (Exception e)
  {
    Msg.Text = e.Message;
    return;
  }

  if (newPassword != null)
  {
    Msg.Text = "Password reset. Your new password is: " + Server.HtmlEncode(newPassword);
  }
  else
  {
    Msg.Text = "Password reset failed. Please re-enter your values and try again.";
  }
}


</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Reset Password</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Retrieve Password</h3>

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

  Username: <asp:Textbox id="UsernameTextBox" Columns="30" runat="server" AutoPostBack="true" />
            <asp:RequiredFieldValidator id="UsernameRequiredValidator" runat="server"
                                        ControlToValidate="UsernameTextBox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /><br />

  Password Question: <b><asp:Label id="QuestionLabel" runat="server" /></b><br />

  Answer: <asp:TextBox id="AnswerTextBox" Columns="60" runat="server" Enabled="false" />
          <asp:RequiredFieldValidator id="AnswerRequiredValidator" runat="server"
                                      ControlToValidate="AnswerTextBox" ForeColor="red"
                                      Display="Static" ErrorMessage="Required" Enabled="false" /><br />

  <asp:Button id="ResetPasswordButton" Text="Reset Password" 
              OnClick="ResetPassword_OnClick" runat="server" Enabled="false" />

</form>

</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 u As MembershipUser

Public Sub Page_Load(sender As Object, args As EventArgs)
  If Not Membership.EnablePasswordReset Then
    FormsAuthentication.RedirectToLoginPage()
  End If

  Msg.Text = ""

  If Not IsPostBack Then
    Msg.Text = "Please supply a username."
  Else
    VerifyUsername()
  End If
End Sub

Public Sub VerifyUsername()
    u = Membership.GetUser(UsernameTextBox.Text, False)

    If u Is Nothing Then
      Msg.Text = "Username " & Server.HtmlEncode(UsernameTextBox.Text) & " not found. Please check the value and re-enter."

      QuestionLabel.Text = ""
      QuestionLabel.Enabled = False
      AnswerTextBox.Enabled = False
      ResetPasswordButton.Enabled = False
    Else
      QuestionLabel.Text = u.PasswordQuestion
      QuestionLabel.Enabled = True
      AnswerTextBox.Enabled = True
      ResetPasswordButton.Enabled = True
    End If
End Sub

Public Sub ResetPassword_OnClick(sender As Object, args As EventArgs)
  Dim newPassword As String
  u = Membership.GetUser(UsernameTextBox.Text, False)

  If u Is Nothing Then
    Msg.Text = "Username " & Server.HtmlEncode(UsernameTextBox.Text) & " not found. Please check the value and re-enter."
    Return
  End If

  Try
    newPassword = u.ResetPassword(AnswerTextBox.Text)
  Catch e As MembershipPasswordException
    Msg.Text = "Invalid password answer. Please re-enter and try again."
    Return
  Catch e As Exception
    Msg.Text = e.Message
    Return
  End Try

  If Not newPassword Is Nothing Then
    Msg.Text = "Password reset. Your new password is: " & Server.HtmlEncode(newPassword)
  Else
    Msg.Text = "Password reset failed. Please re-enter your values and try again."
  End If
End Sub


</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Sample: Reset Password</title>
</head>
<body>

<form id="form1" runat="server">
  <h3>Retrieve Password</h3>

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

  Username: <asp:Textbox id="UsernameTextBox" Columns="30" runat="server" AutoPostBack="True" />
            <asp:RequiredFieldValidator id="UsernameRequiredValidator" runat="server"
                                        ControlToValidate="UsernameTextBox" ForeColor="red"
                                        Display="Static" ErrorMessage="Required" /><br />

  Password Question: <b><asp:Label id="QuestionLabel" runat="server" /></b><br />

  Answer: <asp:TextBox id="AnswerTextBox" Columns="60" runat="server" Enabled="False" />
          <asp:RequiredFieldValidator id="AnswerRequiredValidator" runat="server"
                                      ControlToValidate="AnswerTextBox" ForeColor="red"
                                      Display="Static" ErrorMessage="Required" Enabled="False" /><br />

  <asp:Button id="ResetPasswordButton" Text="Reset Password" 
              OnClick="ResetPassword_OnClick" runat="server" Enabled="False" />

</form>

</body>
</html>

Opmerkingen

Als RequiresQuestionAndAnswer dat het is true, moet het wachtwoordantwoord voor een lidmaatschapsgebruiker worden opgegeven aan de GetPassword en ResetPassword methoden. De PasswordQuestion functie fungeert als herinnering aan de lidmaatschapsgebruiker van wat hun wachtwoordantwoord is. Zodra de gebruiker van het lidmaatschap een wachtwoordantwoord heeft opgegeven, kan de antwoordwaarde aan de GetPassword of ResetPassword methode worden opgegeven.

Van toepassing op

Zie ook