MailMessage.Subject 屬性

定義

命名空間:

System.Net.Mail

組件:

System.Net.Mail.dll

組件:

System.dll

組件:

netstandard.dll

取得或設定這個電子郵件訊息的主旨。

public:
 property System::String ^ Subject { System::String ^ get(); void set(System::String ^ value); };

public string Subject { get; set; }

member this.Subject : string with get, set

Public Property Subject As String

屬性值

String

String，包含主旨內容。

範例

下列程式碼範例示範如何設定 Subject 屬性。

static void CreateTestMessage2( String^ server )
{
   String^ to = L"jane@contoso.com";
   String^ from = L"ben@contoso.com";
   MailMessage^ message = gcnew MailMessage( from,to );
   message->Subject = L"Using the new SMTP client.";
   message->Body = L"Using this new feature, you can send an email message from an application very easily.";
   SmtpClient^ client = gcnew SmtpClient( server );
   
   // Credentials are necessary if the server requires the client 
   // to authenticate before it will send email on the client's behalf.
   client->UseDefaultCredentials = true;
   client->Send( message );
   client->~SmtpClient();
}

public static void CreateTestMessage2(string server)
{
    string to = "jane@contoso.com";
    string from = "ben@contoso.com";
    MailMessage message = new MailMessage(from, to);
    message.Subject = "Using the new SMTP client.";
    message.Body = @"Using this new feature, you can send an email message from an application very easily.";
    SmtpClient client = new SmtpClient(server);
    // Credentials are necessary if the server requires the client
    // to authenticate before it will send email on the client's behalf.
    client.UseDefaultCredentials = true;

    try
    {
        client.Send(message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Exception caught in CreateTestMessage2(): {0}",
            ex.ToString());
    }
}

Public Shared Sub CreateTestMessage2(ByVal server As String)
    Dim [to] As String = "jane@contoso.com"
    Dim from As String = "ben@contoso.com"
    Dim message As MailMessage = New MailMessage(from, [to])
    message.Subject = "Using the new SMTP client."
    message.Body = "Using this new feature, you can send an email message from an application very easily."
    Dim client As SmtpClient = New SmtpClient(server)
    ' Credentials are necessary if the server requires the client
    ' to authenticate before it will send email on the client's behalf.
    client.UseDefaultCredentials = True

    Try
        client.Send(message)
    Catch ex As Exception
        Console.WriteLine("Exception caught in CreateTestMessage2(): {0}", ex.ToString())
    End Try
End Sub

備註

使用 SubjectEncoding 屬性指定主旨所使用的編碼方式。