如何使用.NET HttpWebRequest的API来读取响应HTTP头？

我的应用程序目前使用OAuth与Twitter的API进行通信。在12月，Twitter的调升速率限制的OAuth每小时350请求。不过，我没有看到这一点。我仍然href=\"http://apiwiki.twitter.com/Twitter-REST-API-Method%3a-account%C2%A0rate_limit_status\">占到/ rate_limit_status 方法

My app currently uses OAuth to communicate with the Twitter API. Back in December, Twitter upped the rate limit for OAuth to 350 requests per hour. However, I am not seeing this. I am still getting 150 from the account/rate_limit_status method.

有人告诉我，我需要使用 X-RateLimit限额 HTTP头，以获得新的限速。然而，在我的代码，我没有看到这个头。

I was told that I needed to use the X-RateLimit-Limit HTTP header to get the new rate limit. However, in my code, I do not see that header.

下面是我的代码...

Here is my code...

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(newURL);
request.Method = "GET";
request.ServicePoint.Expect100Continue = false;
request.ContentType = "application/x-www-form-urlencoded";

using (WebResponse response = request.GetResponse())
{
    using (StreamReader reader = new StreamReader(response.GetResponseStream()))
    {
        responseString = reader.ReadToEnd();
    }
}

如果我检查响应，我可以看到它有标题属性，并有16头。不过，我没有 X-RateLimit限额列表

If I inspect the response, I can see that it has a property for Headers, and that there are 16 headers. However, I do not have X-RateLimit-Limit in the list.

任何想法，我做错了？