关于c＃：了解异步任务并等待SendGrid

Understanding async Task and await with SendGrid

本问题已经有最佳答案，请猛点这里访问。

我试图用await来理解async和Task，不确定我是否能理解，因为我的应用程序没有像我认为的那样响应。

我有一个MVC项目，在控制器内部是一个在保存时运行的方法。这个方法做了一些事情，但我关注的主要项目是向sendgrid发送电子邮件。

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[HttpPost]
[ValidateAntiForgeryToken]
private void SaveAndSend(ModelView model)
{
//This is never used, but is needed in"static async Task Execute()"
ApplicationDBContext db = new ApplicationDBContext();

//First try (like the SendGrid example)
Execute().Wait();
//More code, but wasn't being executed (even with a breakpoint)
//...

//Second try, removed the .Wait()
Execute();
//More code and is being executed (good)
//...
}

在execute()内：

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static async Task Execute()
{
var apiKey ="REMOVED";
var client = new SendGridClient(apiKey);
var from = new SendGrid.Helpers.Mail.EmailAddress("[email protected]","Example User");
var subject ="Sending with SendGrid is Fun";
var to = new SendGrid.Helpers.Mail.EmailAddress("[email protected]","Example User");
var plainTextContent ="and easy to do anywhere, even with C#";
var htmlContent ="and easy to do anywhere, even with C#";
var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, htmlContent);
var iResponse = await client.SendEmailAsync(msg);

//The above ^ is executed (sent to SendGrid successfuly)

//The below is not being executed if I run the code with no breakpoints
//If I set a breakpoint above, I can wait a few seconds, then continue and have the code below executed

//This is an Object I have to save the Response from SendGrid for testing purposes
SendGridResponse sendGridResponse = new SendGridResponse
{
Date = DateTime.Now,
Response = JsonConvert.SerializeObject(iResponse, Formatting.None, new JsonSerializerSettings() { ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore })
};

//This is needed to save to the database, was hoping to avoid creating another Context
ApplicationDBContext db = new ApplicationDBContext();

db.SendGridResponses.Add(sendGridResponse);
db.SaveChanges();

}

既然我已经概述了我的代码(很可能是糟糕的实践)，我希望更好地理解异步任务，并改进我正试图完成的工作。

如何等待var iResponse = await client.SendEmailAsync(msg);并将其保存到我的数据库中？允许应用程序继续(而不是中断用户体验)。

如果我需要更多的信息，请告诉我。