asp.net core web api中的Html怎么写，只能用assignment,call,increment,decrement,await,new object expressions作为语句

Question

我想在 ASP.NET Core 6.0 Web API 中通过电子邮件发送消息。

public void SendMail(string password, string to)
{
    var host = _config.GetSection("Email:HOST").Value;
    var port = _config.GetSection("Email:PORT").Value;
    var fromEmail = _config.GetSection("Email:Credentials:Username").Value;
    var passwordOfFromEmail = _config.GetSection("Email:Credentials:Password").Value;
    var toEmail = to;

    using (MailMessage mm = new MailMessage(fromEmail, toEmail))
    {
        mm.Subject = "Your Secret Password";
        // mm.Body = "Your Secret Password is " + password;
        mm.IsBodyHtml = true;

        mm.Body = $"<p>Your Secret Password is " + password + "</b> To unsubscribe your account, <form method=\"post\" action=\"http://localhost:5000/api/newsletter-subscription/public/unsubscribe\" class=\"inline\">  <input name=\"email\" value="toEmail"> <button type = \"submit\" name = \"submit_param\"  value ="toEmail" class=\"link-button\"> Click Here   </button> </form>.</p>";

        // removed rest
    }
}

我收到这个错误：

Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement [Application]

; expected [Application] at value="toEmail"

Answer 1

您只能使用“{toEmail}”来插入电子邮件值

mm.Body = $"<p>Your Secret Password is { password }</b> To unsubscribe your account,
 <form method=\"post\" action=\"http://localhost:5000/api/newsletter-subscription/public/unsubscribe\" class=\"inline\">  
<input name=\"email\" value=\"{toEmail}\"> <button type = \"submit\" name = \"submit_param\"  
value = \"{toEmail}\" class=\"link-button\"> Click Here   </button> </form>.</p>";