在 POST 方法 Windows Phone 7 中将标头添加到 WebHeaderCollection
我的服务器要求我们将包含设备ID的标头发布到服务器，通常我们可以做这样的事情：
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_connectionURL);
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add // THIS METHOD DOESN'T EXIST in windows phone 7
request.Method = "POST";
它有这个方法，允许您设置可用的标头，但是我想要的标头不包含在那里，我该怎么办将另一个标头添加到 WebHeaderCollection。
request.Headers.AllKeys.SetValue //this function to set the available headers.
My server requires us to post a header that include device ID to server, normally we can do some thing like this:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_connectionURL);
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add // THIS METHOD DOESN'T EXIST in windows phone 7
request.Method = "POST";
It has this method, which allows you to set available headers, but the header I want is not included there, how can I add another header to WebHeaderCollection.
request.Headers.AllKeys.SetValue //this function to set the available headers.
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有些标头受到限制，例如 Referrer，会抛出异常。
Some headers are restricted, such as Referrer, and will throw an exception.