c# - 为什么我执行BeginGetRequestStream时会收到ProtocolViolationException

我是Silverlight的新手。我正在Windows Phone的Visual Studio 2010中编程。
我尝试做HttpWebRequest，但调试器说ProtocolViolationException。
这是我的代码

 private void log_Click(object sender, RoutedEventArgs e)
        {
            //auth thi is my url for request
            string auth;
            string login = Uri.EscapeUriString(this.login.Text);
            string password = Uri.EscapeUriString(this.pass.Password);
            auth = "https://api.vk.com/oauth/token";
            auth += "?grant_type=password" + "&client_id=*****&client_secret=******&username=" + login + "&password=" + password + "&scope=notify,friends,messages";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(auth);
            request.BeginGetRequestStream(RequestCallBack, request);//on this line debager say ProtocolViolationExceptio
        }

        void RequestCallBack(IAsyncResult result)
        {
            HttpWebRequest request = result.AsyncState as HttpWebRequest;
            Stream stream = request.EndGetRequestStream(result);
            request.BeginGetResponse(ResponceCallBack, request);
        }
        void ResponceCallBack(IAsyncResult result)
        {
            HttpWebRequest request = result.AsyncState as HttpWebRequest;
            HttpWebResponse response = request.EndGetResponse(result) as HttpWebResponse;
            using (StreamReader sr = new StreamReader(response.GetResponseStream()))
            {
                string a =sr.ReadToEnd();
                MessageBox.Show(a);
            }

        }

最佳答案

我认为问题在于您不是使用POST，而是使用GET。试试这个：

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(auth);
request.Method = "POST";
request.BeginGetRequestStream(RequestCallBack, request);

关于c# - 为什么我执行BeginGetRequestStream时会收到ProtocolViolationException，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11955391/