PasswordRecovery.VerifyingAnswer イベント

定義

パスワード回復用の確認質問への解答をユーザーが送信したときに発生します。Occurs when the user has submitted an answer to the password recovery confirmation question.

public:
 event System::Web::UI::WebControls::LoginCancelEventHandler ^ VerifyingAnswer;
public event System.Web.UI.WebControls.LoginCancelEventHandler VerifyingAnswer;
member this.VerifyingAnswer : System.Web.UI.WebControls.LoginCancelEventHandler 
Public Custom Event VerifyingAnswer As LoginCancelEventHandler 

イベントの種類

LoginCancelEventHandler

次のコード例では、イベントを処理 VerifyingAnswer し、表示されるプロパティを変更し UserName ます。The following code example handles the VerifyingAnswer event and changes the displayed UserName property.

重要

この例には、セキュリティ上の脅威となる可能性のあるユーザー入力を受け付けるテキストボックスが含まれています。This example contains a text box that accepts user input, which is a potential security threat. 既定では、ASP.NET Web ページによって、ユーザー入力にスクリプトまたは HTML 要素が含まれていないかどうかが検証されます。By default, ASP.NET Web pages validate that user input does not include script or HTML elements. 詳細については、「スクリプトによる攻略の概要」を参照してください。For more information, see Script Exploits Overview.

<%@ page language="C#" %>

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

    void PasswordRecovery1_VerifyingUser(Object sender, System.Web.UI.WebControls.LoginCancelEventArgs e)
    {
          DropDownList provider = ((DropDownList)PasswordRecovery1.FindControl("LoginProvider"));

        PasswordRecovery1.MembershipProvider = provider.SelectedValue;
        if (PasswordRecovery1.MembershipProvider != "Default")
        {
          PasswordRecovery1.UserName = String.Format("{0}\\{1}",
            PasswordRecovery1.MembershipProvider, PasswordRecovery1.UserName);    
        }         

    }
    
    void PasswordRecovery1_VerifyingAnswer(Object sender, System.Web.UI.WebControls.LoginCancelEventArgs e)
    {
        PasswordRecovery1.UserName = String.Format("{0}\\{1}",
          PasswordRecovery1.MembershipProvider, PasswordRecovery1.UserName);
    }  
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
      <asp:passwordrecovery id="PasswordRecovery1" 
        runat="server" 
        onverifyinguser="PasswordRecovery1_VerifyingUser"
        onverifyinganswer="PasswordRecovery1_VerifyingAnswer">
        <usernametemplate>
          <table border="0">
            <tr>
              <td align="Center" colspan="2">Forgot Your Password?</td>
            </tr>
            <tr>
              <td align="Center" colspan="2">Enter your User Name to receive your password.</td>
            </tr>
            <tr>
              <td>Log in domain:</td>
              <td>
                <asp:dropdownlist id="LoginProvider" runat="server">
                  <asp:listitem value="Default">Default</asp:listitem>
                  <asp:listitem value="Administration">Administration</asp:listitem>
                  <asp:listitem value="Editorial">Editorial</asp:listitem>
                  <asp:listitem value="Finance">Finance</asp:listitem>
                  <asp:listitem value="Marketing">Marketing</asp:listitem>
                </asp:dropdownlist>
              </td>
            </tr>
            <tr>
              <td align="Right">User Name:</td>
              <td>
                <asp:textbox runat="server" id="UserName"></asp:textbox>
                <asp:requiredfieldvalidator runat="server" 
                  controltovalidate="UserName" 
                  errormessage="User Name." 
                  id="UserNameRequired">
                  *
                </asp:requiredfieldvalidator>
              </td>
            </tr>
            <tr>
              <td align="Right" colspan="2">
                <asp:button runat="server" 
                  commandname="Submit" 
                  text="Submit" 
                  id="Button">
                </asp:button>
              </td>
            </tr>
            <tr>
              <td colspan="2" style="color:Red;">
                <asp:literal runat="server" id="FailureText"></asp:literal>
              </td>
            </tr>
          </table>
        </usernametemplate>
      </asp:passwordrecovery>
    </form>
  </body>
</html>
<%@ page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server"> 
  Sub PasswordRecovery1_VerifyingUser(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs)
  
      Dim provider as DropDownList
      provider = CType(PasswordRecovery1.FindControl("LoginProvider"),DropDownList)
    PasswordRecovery1.MembershipProvider = provider.SelectedValue
    
        If PasswordRecovery1.MembershipProvider <> "Default" Then
          PasswordRecovery1.UserName = String.Format("{1}\\{0}", _
            PasswordRecovery1.MembershipProvider, PasswordRecovery1.UserName)
        End If
        
    End Sub
    
    Sub PasswordRecovery1_VerifyingAnswer(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs)
    
      PasswordRecovery1.UserName = String.Format("{1}\\{0}", _
        PasswordRecovery1.MembershipProvider, PasswordRecovery1.UserName)
            
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
      <asp:passwordrecovery id="PasswordRecovery1" 
        runat="server" 
        onverifyinguser="PasswordRecovery1_VerifyingUser" 
        onverifyinganswer="PasswordRecovery1_VerifyingAnswer">
          <usernametemplate>
            <table border="0">
              <tr>
                  <td align="Center" colspan="2">Forgot Your Password?</td>
              </tr>
              <tr>
                  <td align="Center" colspan="2">Enter your User Name to receive your password.</td>
              </tr>
              <tr>
                <td>Log in domain:</td>
                <td>
                  <asp:dropdownlist id="LoginProvider" runat="server">
                    <asp:listitem value="Default">Default</asp:listitem>
                    <asp:listitem value="Administration">Administration</asp:listitem>
                    <asp:listitem value="Editorial">Editorial</asp:listitem>
                    <asp:listitem value="Finance">Finance</asp:listitem>
                    <asp:listitem value="Marketing">Marketing</asp:listitem>
                  </asp:dropdownlist>
                </td>
              </tr>
              <tr>
                <td align="Right">User Name:</td>
                <td>
                  <asp:textbox runat="server" 
                    id="UserName">
                  </asp:textbox>
                  <asp:requiredfieldvalidator runat="server" 
                    controltovalidate="UserName" 
                    errormessage="User Name." 
                    id="UserNameRequired">
                    *
                  </asp:requiredfieldvalidator>
                </td>
              </tr>
              <tr>
                <td align="Right" colspan="2">
                  <asp:button runat="server" 
                    commandname="Submit" 
                    text="Submit" 
                    id="Button">
                  </asp:button>
                </td>
              </tr>
              <tr>
                <td colspan="2" style="color:Red;">
                  <asp:literal runat="server" id="FailureText"></asp:literal>
                </td>
              </tr>
            </table>
          </usernametemplate>
      </asp:passwordrecovery>
    </form>
  </body>
</html>

注釈

イベントは、 VerifyingAnswer ユーザーがパスワードの確認質問に回答を送信した後にサーバーで発生します。The VerifyingAnswer event occurs on the server after the user submits the answer to the password confirmation question. このイベントを使用して、メンバーシッププロバイダーのユーザーが送信した回答を準備できます。たとえば、大文字と小文字をすべて大文字に変換することができます。You can use this event to prepare the answer submitted by the user for the membership provider, for example by converting it to all uppercase or lowercase letters.

PasswordRecoveryコントロールは最初にイベントを発生させ、次に、 VerifyingAnswer プロパティで指定されたメンバーシッププロバイダーを使用し MembershipProvider て、ユーザーが入力した回答を Web サイトに格納されているパスワードと比較します。The PasswordRecovery control first raises the VerifyingAnswer event, and then uses the membership provider specified in the MembershipProvider property to compare the answer entered by the user with the password stored in the Web site.

イベントの処理の詳細については、「処理とイベントの発生」を参照してください。For more information about handling events, see Handling and Raising Events.

適用対象

こちらもご覧ください