asp.net - 如何在发送电子邮件时插入换行符？

Question

“\n”或“
”均无效。我试图在通过电子邮件发送自定义表单的内容时插入换行符:

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;
}

更新:

我最终
开始工作了。它不起作用的原因是因为这是我从联系表中获得的原始代码:

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

MailMessage.IsBodyHtml 在核心库代码中设置为 true。

Answer 1

您可以使用:

• Environment.NewLine使用默认值时的运算符 MailMessage.IsBodyHtml = False模式；

• 在 MailMessage.IsBodyHtml 时通过“br”标签实现换行模式为 True。