Html標籤不能在C＃中格式化string.format

Question

我想發送格式化HTML內的字符串和參數的電子郵件。
我的代碼是這樣的：

string title = "Big"; 
string text = "<p>email stuff with <b>important</b> {0} stuff</p>"; 
string.Format(text, title); 


MailMessage msz = new MailMessage(); 
var studentEmail = "someplace@somewhere.net"; 


msz.To.Add(new MailAddress(studentEmail, "Someone")); 

msz.From = new MailAddress(from);          

msz.Subject = "Subject"; 
msz.Body = bodyText; 
SmtpClient smtp = new SmtpClient(); 
smtp.EnableSsl = true; 

smtp.Send(msz); 

我想在電子郵件中得到「電子郵件的東西與重要大的東西」，但我得到這個電子郵件中的：<p>email stuff with <b>important</b> {0} stuff</p>

Answer 1

其實它取決於你是如何發送電子郵件。

您應該將文本存儲到的MailMessage

string title = "Big"; 
string text = "<p>email stuff with <b>important</b> {0} stuff</p>"; 
string.Format(text, title); 


MailMessage message = new MailMessage(); 
message.From = "sender@abc.com"); 
message.To.Add("dummy@abc.com"); 
message.Subject = title; 
message.IsBodyHtml = true; 
message.Body = text; 

Body部分有了IsBodyHtml = true，它會幫你格式化所有HTML標籤。

對於發送：

SmtpClient smtpClient = new SmtpClient() 
... 
smtpClient.Send(message); 

Answer 2

您可以使用串插增加值（一個或多個）需要直接：

string title = "Big" 

// Now this value has your expected output. 
string text = $"<p>email stuff with <b>important</b> {title} stuff</p>";