EmbeddedMailObject 建構函式

參考

定義

命名空間:: System.Web.UI.WebControls

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

初始化 EmbeddedMailObject 類別的新執行個體。

多載

EmbeddedMailObject()	初始化 EmbeddedMailObject 類別的新執行個體。
EmbeddedMailObject(String, String)	初始化 EmbeddedMailObject 類別的新執行個體，並使用指定的識別項名稱及路徑填入物件。

EmbeddedMailObject()

初始化 EmbeddedMailObject 類別的新執行個體。

public:
 EmbeddedMailObject();

public EmbeddedMailObject ();

Public Sub New ()

備註

若要取得或設定內嵌項目的標識碼，請使用 Name 屬性。若要取得或設定內嵌項目的路徑，請使用 Path 屬性。這兩個屬性都必須設定為成功將專案內嵌在郵件訊息中。

另請參閱

適用於

EmbeddedMailObject(String, String)

初始化 EmbeddedMailObject 類別的新執行個體，並使用指定的識別項名稱及路徑填入物件。

public:
 EmbeddedMailObject(System::String ^ name, System::String ^ path);

public EmbeddedMailObject (string name, string path);

new System.Web.UI.WebControls.EmbeddedMailObject : string * string -> System.Web.UI.WebControls.EmbeddedMailObject

Public Sub New (name As String, path As String)

參數

name: String

做為要嵌入郵件訊息中之項目識別項的名稱。如需詳細資訊，請參閱Name。

path: String

用來擷取要嵌入郵件訊息中之項目的路徑。如需詳細資訊，請參閱Path。

範例

下列程式代碼範例顯示使用 ChangePassword 控件之 ASP.NET 頁面的程式代碼後置範例，並包含名為SendingMail之SendingMail事件的事件處理程式。此程式代碼範例假設 ASP.NET 網站已設定為使用 ASP.NET 成員資格和窗體驗證，而且已建立已知其名稱和密碼的使用者。如需詳細資訊，請參閱如何：實作簡單窗體驗證。

如果密碼變更成功，事件處理程式中的 SendingMail 程式代碼會嘗試傳送電子郵件訊息給使用者以確認變更。必須在伺服器上設定 SMTP，此程式碼範例才能運作。如需如何設定 SMTP 伺服器的資訊，請參閱如何：在 IIS 6.0 中安裝和設定 SMTP 虛擬伺服器。針對此範例的目的，您不需要設定 SMTP 伺服器;此範例是建構來測試傳送電子郵件訊息失敗。

如果未正確設定郵件伺服器，或發生其他錯誤，而且無法傳送電子郵件訊息，則會呼叫函 SendMailError 式。系統會向用戶顯示一則訊息。此外，事件會記錄到 Windows 應用程式事件記錄檔，並假設名為 MySamplesSite 的事件來源已經存在。請參閱下列程式代碼範例以建立指定的事件來源。如需建立事件來源的詳細資訊，請參閱 ASP.NET Web Forms Pages 中的伺服器事件處理。物件的 Handled 屬性 SendMailErrorEventArgs 設定為 true ，表示已處理錯誤。

下列程式代碼範例示範如何使用 .aspx 頁面。

<%@ Page Language="C#" CodeFile="ChangePassword.cs" Inherits="ChangePassword_cs_aspx" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
  <title>ChangePassword using code-behind including a SendMailError Event</title>
</head>
<body>
  <form id="form1" runat="server">
  <div style="text-align:center">

    <h1>ChangePassword</h1>
    
    <asp:LoginView ID="LoginView1" Runat="server" 
      Visible="true">
      <LoggedInTemplate>
        <asp:LoginName ID="LoginName1" Runat="server" FormatString="You are logged in as {0}." />
        <br />
      </LoggedInTemplate>
      <AnonymousTemplate>
        You are not logged in
      </AnonymousTemplate>
    </asp:LoginView><br />
    
    <asp:ChangePassword ID="ChangePassword1" Runat="server"
      BorderStyle="Solid" 
      BorderWidth="1" 
      CancelDestinationPageUrl="~/Default.aspx" 
      DisplayUserName="true"
      ContinueDestinationPageUrl="~/Default.aspx" >
    </asp:ChangePassword><br />
  
    <asp:Label ID="Message1" Runat="server" ForeColor="Red" /><br />

    <asp:HyperLink ID="HyperLink1" Runat="server" 
      NavigateUrl="~/Default.aspx">
      Home
    </asp:HyperLink>
    
  </div>
  </form>
</body>
</html>

<%@ Page Language="VB" AutoEventWireup="true" CodeFile="ChangePassword.vb" Inherits="ChangePassword_vb_aspx" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>ChangePassword using code-behind including a SendMailError Event</title>
</head>
<body>
  <form id="form1" runat="server">
  <div style="text-align:center">

    <h1>ChangePassword</h1>
    
    <asp:LoginView ID="LoginView1" Runat="server" 
      Visible="true">
      <LoggedInTemplate>
        <asp:LoginName ID="LoginName1" Runat="server" FormatString="You are logged in as {0}." />
        <br />
      </LoggedInTemplate>
      <AnonymousTemplate>
        You are not logged in
      </AnonymousTemplate>
    </asp:LoginView><br />
    
    <asp:ChangePassword ID="ChangePassword1" Runat="server"
      BorderStyle="Solid" 
      BorderWidth="1" 
      CancelDestinationPageUrl="~/Default.aspx" 
      DisplayUserName="true"
      ContinueDestinationPageUrl="~/Default.aspx"
      OnSendingMail="_SendingMail" 
      OnSendMailError="_SendMailError" >
    </asp:ChangePassword><br />
  
    <asp:Label ID="Message1" Runat="server" ForeColor="Red" /><br />

    <asp:HyperLink ID="HyperLink1" Runat="server" 
      NavigateUrl="~/Default.aspx">
      Home
    </asp:HyperLink>
    
  </div>
  </form>
</body>
</html>

下列程式代碼範例示範如何使用程式代碼後置檔案。

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

public partial class ChangePassword_cs_aspx : System.Web.UI.Page
{
    protected void Page_Load(Object sender, EventArgs e)
    {
        // Manually register the event-handling methods.
        ChangePassword1.SendingMail += new MailMessageEventHandler(this._SendingMail);
        ChangePassword1.SendMailError += new SendMailErrorEventHandler(this._SendMailError);

        ChangePassword1.MailDefinition.BodyFileName = "~/Attachments/ChangePasswordMail.htm";

        EmbeddedMailObject loginGif = new EmbeddedMailObject();
        loginGif.Name = "LoginGif";
        loginGif.Path = "~/Attachments/Login.gif";

        EmbeddedMailObject privacyNoticeTxt = new EmbeddedMailObject();
        privacyNoticeTxt.Name = "PrivacyNoticeTxt";
        privacyNoticeTxt.Path = "~/Attachments/PrivacyNotice.txt";

        ChangePassword1.MailDefinition.EmbeddedObjects.Add(loginGif);
        ChangePassword1.MailDefinition.EmbeddedObjects.Add(privacyNoticeTxt);
    }

    protected void _SendingMail(object sender, MailMessageEventArgs e)
    {
        Message1.Visible = true;
        Message1.Text = "Sent mail to you to confirm the password change.";

        System.Net.Mail.MailAddress from = new System.Net.Mail.MailAddress("someone@example.com", "Someone");
        System.Net.Mail.MailAddress copy = new System.Net.Mail.MailAddress("someone@example.com", "Someone");

        e.Message.From = from;
        e.Message.CC.Add(copy);
        e.Message.Subject = "Activity information for you";
        e.Message.IsBodyHtml = true;
    }

    protected void _SendMailError(object sender, SendMailErrorEventArgs e)
    {
        Message1.Visible = true;
        Message1.Text = "Could not send email to confirm password change.";

        // The MySamplesSite event source has already been created by an administrator.
        System.Diagnostics.EventLog myLog = new System.Diagnostics.EventLog();
        myLog.Source = "MySamplesSite";
        myLog.Log = "Application";
        myLog.WriteEntry(
          "Sending mail via SMTP failed with the following error: " +
          e.Exception.Message.ToString(),
          System.Diagnostics.EventLogEntryType.Error);

        e.Handled = true;
    }
}

Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls

Partial Class ChangePassword_vb_aspx
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal Sender As Object, ByVal e As System.EventArgs)
        AddHandler ChangePassword1.SendingMail, AddressOf Me._SendingMail
        AddHandler ChangePassword1.SendMailError, AddressOf Me._SendMailError
        ChangePassword1.MailDefinition.BodyFileName = "~/Attachments/ChangePasswordMail.htm"
        ChangePassword1.MailDefinition.Cc = "someone@example.com"
        ChangePassword1.MailDefinition.From = "someone@example.com"

        Dim loginGif As New EmbeddedMailObject
        loginGif.Name = "LoginGif"
        loginGif.Path = "~/Attachments/Login.gif"

        Dim privacyNoticeTxt As New EmbeddedMailObject
        privacyNoticeTxt.Name = "PrivacyNoticeTxt"
        privacyNoticeTxt.Path = "~/Attachments/PrivacyNotice.txt"

        ChangePassword1.MailDefinition.EmbeddedObjects.Add(loginGif)
        ChangePassword1.MailDefinition.EmbeddedObjects.Add(privacyNoticeTxt)
    End Sub

    Protected Sub _SendingMail(ByVal Sender As Object, ByVal e As MailMessageEventArgs)
        Message1.Visible = True
        Message1.Text = "Sent mail to you to confirm the password change."

        e.Message.Subject = "Activity information for you"
        e.Message.IsBodyHtml = True

    End Sub

    Protected Sub _SendMailError(ByVal Sender As Object, ByVal e As SendMailErrorEventArgs)
        Message1.Visible = True
        Message1.Text = "Could not send mail to confirm the password change."

        ' The MySamplesSite event source has already been created by an administrator.
        Dim myLog As System.Diagnostics.EventLog
        myLog = New System.Diagnostics.EventLog
        myLog.Log = "Application"
        myLog.Source = "MySamplesSite"
        myLog.WriteEntry("Sending mail via SMTP failed with the following error: " & e.Exception.Message.ToString(), System.Diagnostics.EventLogEntryType.Error)

        e.Handled = True

    End Sub

End Class

如果您需要以程式設計方式將名為 MySamplesSite 的事件來源新增至應用程式記錄檔，請使用下列程式碼範例。此事件來源必須存在，第一個程式代碼範例才能正常運作。下列程式代碼範例需要系統管理員許可權。

#region Using directives

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

#endregion

namespace CreateEventSource
{
    class Program
    {
        static void Main(string[] args)
        {

            try
            {
                // Create the source, if it does not already exist.
                if (!EventLog.SourceExists("MySamplesSite"))
                {
                    EventLog.CreateEventSource("MySamplesSite", "Application");
                    Console.WriteLine("Creating Event Source");
                }

                // Create an EventLog instance and assign its source.
                EventLog myLog = new EventLog();
                myLog.Source = "MySamplesSite";

                // Write an informational entry to the event log.    
                myLog.WriteEntry("Testing writing to event log.");

                Console.WriteLine("Message written to event log.");
            }
            catch (Exception e)
            {
                Console.WriteLine("Exception:");
                Console.WriteLine("{0}", e.ToString());
            }
        }
    }
}

Imports System.Collections.Generic
Imports System.Text
Imports System.Diagnostics


Namespace CreateEventSource
  Class Program
    Sub Main()

        Try
            ' Create the source, if it does not already exist.
            If Not (EventLog.SourceExists("MySamplesSite")) Then
                EventLog.CreateEventSource("MySamplesSite", "Application")
                Console.WriteLine("Creating Event Source")
            End If

            ' Create an EventLog instance and assign its source.
            Dim myLog As New EventLog
            myLog.Source = "MySamplesSite"

            ' Write an informational entry to the event log.
            myLog.WriteEntry("Testing writing to event log.")

            Console.WriteLine("Message written to event log.")
        Catch e As Exception
            Console.WriteLine("Exception:")
            Console.WriteLine(e.ToString)
        End Try

    End Sub
  End Class
End Namespace

下列範例程式代碼可作為上述範例程式代碼的 ChangePasswordMail.htm 檔案。

重要

在電子郵件訊息中傳送用戶帳戶名稱或密碼是潛在的安全性威脅。電子郵件訊息通常會以純文本傳送，而且可由特殊網路「探查」應用程式讀取。若要改善安全性，請使用保護登入控件中所述的風險降低措施。

<html>  
<head><title></title></head>  
<body>  
<form>  

  <h1>Your password for the account named &quot;<%Username%>&quot; has changed.</h1>  

  <p>  
  If you did not initiate this change, please call 1-206-555-0100.  
  </p>  

  <p>  
  <a href="http://www.contoso.com/login.aspx">  
    <img src="cid:LoginGif" alt="Log In" />  
  </a>   
  </p>  

  <p>  
  Please read our attached Privacy Notice.  
  </p>  

</form>  
</body>  
</html>

另請參閱

適用於

共用方式為

EmbeddedMailObject 建構函式

定義

多載

EmbeddedMailObject()

備註

另請參閱

適用於

EmbeddedMailObject(String, String)

參數

範例

另請參閱

適用於

其他資源