异步发送的电子邮件在C＃中？ [英] Asynchronously sending Emails in C#?

问题描述

我正在开发，其中用户点击/ presses在一个窗口中的某个按钮输入的应用程序，该应用程序做了一些检查，确定是否要发送几封电子邮件，或没有，然后显示与另一个窗口一个消息。

I'm developing an application where a user clicks/presses enter on a certain button in a window, the application does some checks and determines whether to send out a couple of emails or not, then show another window with a message.

我的问题是，发送的电子邮件2减缓显着的过程中，对于一些（〜8）秒的第一个窗口看起来冻结，同时它做的发送。

My issue is, sending out the 2 emails slows the process noticeably, and for some (~8) seconds the first window looks frozen while it's doing the sending.

有什么办法，我可以有这些邮件的背景发送并显示下一个窗口，对吗？

Is there any way I can have these emails sent on the background and display the next window right away?

请不要限制与使用的是X班或只是使用的是X方法，因为我不是太有语言又熟悉和一些更多的信息将是非常美联社preciated你的答案。

Please don't limit your answer with "use X class" or "just use X method" as I am not all too familiarized with the language yet and some more information would be highly appreciated.

感谢。

推荐答案

由于.NET 4.5 SmtpClient的实现异步awaitable方法
<一href=\"http://msdn.microsoft.com/en-us/library/hh193922%28v=vs.110%29.aspx\"><$c$c>SendMailAsync.
其结果是，以异步发送电子邮件是如下：

As of .NET 4.5 SmtpClient implements async awaitable method SendMailAsync. As a result, to send email asynchronously is as following:

public async Task SendEmail(string toEmailAddress, string emailSubject, string emailMessage)
{
    var message = new MailMessage();
    message.To.Add(toEmailAddress);

    message.Subject = emailSubject;
    message.Body = emailMessage;

    using (var smtpClient = new SmtpClient())
    {
        await smtpClient.SendMailAsync(message);
    }
} 

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