我在Windows 8应用程序中使用HttpClient的，似乎是故意隐藏的自定义标题中的响应。例如：

I'm using HttpClient in a Windows 8 app and it seems that it purposely hides custom headers in the response. For example:

我们的接收到的响应有一个名为采样头：123自定义标题

Our response received has a custom header called "Sample-Header: 123"

我预计，在响应内容头将包含采样头与123

I expect that the headers in the response content would contain "Sample-Header" with a value of "123"

var client = new HttpClient();
var response = await client.GetAsync(uri);

string sample;
IEnumerable<string> values;

if (response.Content.Headers.TryGetValues("Sample-Header", out values))
{
   // This never happens!
   sample = values.First();
}

即使我在头枚举，我永远也找不到我们的自定义标题。

Even if I enumerate through the headers, I'll never find our custom headers.

推荐答案

确定。显然，有可以使用两个不同的标题的集合。下面code工作：

Ok. Apparently, there are two different header collections you could use. The following code works:

var client = new HttpClient();
var response = await client.GetAsync(uri);

string sample;
IEnumerable<string> values;

if (response.Headers.TryGetValues("Sample-Header", out values))
{
   // This happens!
   sample = values.First();
}

你看到的区别？内容头是从响应头完全不同。

Do you see the difference? Content headers are completely different from response headers.

由于戈文德来自微软。