问题

我有一个代码，之前在Framework从4.5升级到4.7之前是可以工作的。现在不再工作了。有没有任何建议，我怎样才能让它工作。

没有错误，但是

response:
Id = 207, Status = WaitingForActivation, Method = "{null}", Result = "{Not yet computed}"	System.Threading.Tasks.Task<SendGrid.Response>

public static void SendMail(EmailBuilder email)
{
   try
    {

        /* CREDENTIALS
         * ===================================================*/
        string sgUsername = ConfigurationManager.AppSettings["SMTPUserName"];
        string sgPassword = ConfigurationManager.AppSettings["SMTPPassword"];


        /* CREATE THE MAIL MESSAGE
         * ===================================================*/
        var myMessage = new SendGridMessage();
        
        var plainTextContent = "";
        if (email.Style == 2)
            plainTextContent = email.Body;
        if (email.Style == 1)
            plainTextContent = email.Body;

        var apiKey = sgPassword;
        var client = new SendGridClient(apiKey);
        var from = new EmailAddress(ConfigurationManager.AppSettings["FromAddress"], ConfigurationManager.AppSettings["FromName"]);
        var subject = email.EmailSubject;
        var to = new EmailAddress(email.EmailAddress, email.FirstName + " " + email.LastName);
        var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, plainTextContent);
        var response = client.SendEmailAsync(msg);
        

    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);

    }
}

我试图将其更改为 `public async Task SendMail`，但是然后我在从另一个类调用它时遇到了困难。
对于这个，它是 `Mailer.SendMail(email)`。

<details>
<summary>英文:</summary>

I have code that was working until I ungraded Framework from 4.5 to 4.7. Now it doesn&#39;t work any more. Are there any suggestion how I can make it work. 
There is no error but

response:
Id = 207, Status = WaitingForActivation, Method = "{null}", Result = "{Not yet computed}" System.Threading.Tasks.Task<SendGrid.Response>

public static void SendMail(EmailBuilder email)
{
try
{

    /* CREDENTIALS
     * ===================================================*/
    string sgUsername = ConfigurationManager.AppSettings["SMTPUserName"];
    string sgPassword = ConfigurationManager.AppSettings["SMTPPassword"];


    /* CREATE THE MAIL MESSAGE
     * ===================================================*/
    var myMessage = new SendGridMessage();
    
    var plainTextContent ="" ;
    if (email.Style == 2)
        plainTextContent = email.Body;
    if (email.Style == 1)
        plainTextContent = email.Body;

    var apiKey = sgPassword;
    var client = new SendGridClient(apiKey);
    var from = new EmailAddress(ConfigurationManager.AppSettings["FromAddress"], ConfigurationManager.AppSettings["FromName"]);
    var subject = email.EmailSubject;
    var to = new EmailAddress(email.EmailAddress, email.FirstName + " " + email.LastName);
    var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, plainTextContent);
    var response = client.SendEmailAsync(msg);
    

}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);

}

}

I tried to change that to public async Task SendMail but then I have difficulties in calling that from another class.
For this one it was Mailer.SendMail(email)

答案1

得分: 2

如您调用异步方法，如果不想将返回类型更改为 Task，可以使用以下方法。

client.SendEmailAsync(msg)
.GetAwaiter()
.GetResult();

无论如何，我建议您使用await关键字并进行所有必要的重构以使您的代码工作。

client.SendEmailAsync(msg)
      .GetAwaiter()
      .GetResult();

答案2

得分: 0

1. 首先将其设置为异步。从某个版本开始出现问题。所以开始将是这样的：

public async Task testEmail()
{
    ...
    var result = await client.SendEmailAsync(msg);
}

2. 如果它不起作用，请检查您发送邮件的目标。例如，发送到 Yahoo 等可能不起作用。

3. 您是否在某个公司参与这个项目？严格的网络安全规则可能会阻止它...然后您就会被列入“禁止列表”直到您请求排除。

At first make it async. From some version it was problem. So begin will be as

public async Task testEmail()
{  ...
var result = await client.SendEmailAsync(msg);
}