ContentType.ToString 方法

public:
 override System::String ^ ToString();

public override string ToString();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

傳回

String A 包含目前的設定。ContentType

範例

以下程式碼範例展示了 的字串表示 ContentType。

public static void CreateMessageInlineAttachment2(string server, string
textMessage)
{
    // Create a message and set up the recipients.
    MailMessage message = new MailMessage(
       "jane@contoso.com",
       "ben@contoso.com",
       "A text message for you.",
       "Message: ");

    // Attach the message string to this email message.
    Attachment data = new Attachment(textMessage);
    // Send textMessage as part of the email body.
    message.Attachments.Add(data);
    ContentType content = data.ContentType;
    content.MediaType = MediaTypeNames.Text.Plain;
    //Send the message.
    // Include credentials if the server requires them.
    SmtpClient client = new SmtpClient(server);
    client.Credentials = CredentialCache.DefaultNetworkCredentials;

    try
    {
        client.Send(message);
    }
    catch (Exception ex)
    {
        Console.WriteLine("Exception caught in CreateMessageInlineAttachment2: {0}",
            ex.ToString());
    }
    data.Dispose();
}

備註

若指定字串且未更改屬性值，方法的值 ToString 包含用於建立此字 ContentType串的字串。 若未指定字串，或自建立 ContentType 以來有一個或多個屬性值改變，則 的 ToString 值為以 Content-Type 標頭格式組成的字串，該函式由目前屬性值組合而成。 字串不包含前綴。"Content-type:"

內容型標頭的語法詳見 RFC 2045 第 5.1 節，網址為 https://www.ietf.org。