如何在電子郵件中插入換行符？

Question

「\ n」或「< br/>」都不起作用。我試圖通過電子郵件發送自定義表單的內容時插入換行符：

protected void SubmitBtn_Click(object sender, EventArgs e) 
{ 
    if (Page.IsValid) 
    { 
     StringBuilder mailBody = new StringBuilder(); 
     mailBody.Append("Company Name: " + companyText.Text.Trim() + "\n\n"); 
     mailBody.Append("Name: " + firstNameText.Text.Trim() + " " 
      + lastNameText.Text.Trim() + "\n\n"); 
     mailBody.Append("Email: " + emailText.Text.Trim() + "\n\n"); 

     if(!String.IsNullOrEmpty(tradeText.Text)) 
      mailBody.Append("Trade: " + tradeText.Text.Trim() + "\n\n"); 

      bool success = SendEmail(emailText.Text.Trim(), 
       companyText.Text.Trim(), "SubContractors Form Submission", 
        mailBody.ToString()); 
    } 
} 

private bool SendEmail(string email, string name, 
    string subject, string message) 
{ 
    using (MailMessage mail = new MailMessage()) 
    { 
     mail.From = new MailAddress(BlogSettings.Instance.Email, name); 
     mail.ReplyTo = new MailAddress(email, name); 

     mail.To.Add(BlogSettings.Instance.Email); 
     mail.Subject = subject; 
     mail.Body += message; 

     if (Utils.SendMailMessage(mail).Length > 0) 
     { 
      return false; 
     }; 
    } 
    return true; 
} 

UPDATE：

我< BR/>最終工作。原因沒有奏效，是因爲這是原來的代碼我從觸點形式有：

mail.Body += message.Replace("\n\n", "<br />"); 

MailMessage.IsBodyHtml設置爲true核心庫代碼。

Answer 1

您可以使用：

• 使用默認MailMessage.IsBodyHtml = False模式時，Environment.NewLine操作;

• 當MailMessage.IsBodyHtml模式爲True時，通過「br」標籤執行換行符。

Answer 2

您正在尋找Environment.NewLine。

mailBody.Append("Email: " + emailText.Text.Trim() + Environment.NewLine); 

Answer 3

我認爲使用AppendLine而不是Append應工作，你在做什麼：

StringBuilder mailBody = new StringBuilder(); 

string company = companyText.Text.Trim(); 
string firstName = firstNameText.Text.Trim(); 
string lastName = lastNameText.Text.Trim(); 
string email = emailText.Text.Trim(); 
string trade = tradeText.Text.Trim(); 

mailBody.AppendFormat("Company Name: {0}", company).AppendLine(); 
mailBody.AppendFormat("Name: {0} {1}", firstName, lastName).AppendLine(); 
mailBody.AppendFormat("Email: {0}", email).AppendLine(); 

if(!string.IsNullOrEmpty(trade)) 
{ 
    mailBody.AppendFormat("Trade: {0}", trade).AppendLine(); 
} 

bool success = SendEmail(email, company, "SubContractors Form Submission", 
    mailBody.ToString()); 

---

新增AppendFormat()爲清楚起見

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創建的變量來消除多.Trim()在af中使用相同的文本EW情況下

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改編AppendFormat().AppendLine()這裏描述的服務表現：When do you use StringBuilder.AppendLine/string.Format vs. StringBuilder.AppendFormat?