AllowAutoRedirect in windowsPhone

Question

In HttpClientHandler have propertie AllowAutoRedirect, but on build app for WindowsPhone throw exception:

HttpClientHandler.AllowAutoRedirect is not supported on this platform. Please check HttpClientHandler.SupportsRedirectConfiguration before using HttpClientHandler.AllowAutoRedirect.

I really want to prevent autoredirect. I tried to use HttpWebRequest:

    var client = (HttpWebRequest) WebRequest.Create(connectionUrl);
client.Headers["AllowAutoRedirect"] = "false";
client.Method = "GET";
client.Headers["UserAgent"] = @"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.43 Safari/537.31";
client.ContentType = "application/json";
client.Headers["ContentLength"] = client.ToString().Length.ToString();
client.BeginGetResponse(Callback, client);
private void Callback(IAsyncResult ar)
{
var requestState =(HttpWebRequest) ar.AsyncState;
using (var postStream = requestState.EndGetRequestStream(ar))
{}
}

this code throw exception on EndGetRequestStream: "Value does not fall within the expected range" I look forward to your help.

Answer 1

I think you are receiving the ArgumentException: Value does not fall within the expected range because you are initiating a BeginGetResponse() on the client but then doing a EndGetRequestStream() in your callback where instead you should call EndGetResponse(). Setting AllowAutoRedirect works fine you just need to fix your code. Try this:

  var client = (HttpWebRequest)WebRequest.Create(connectionUrl);
  client.AllowAutoRedirect = false;
  client.Method = "GET";
  client.BeginGetResponse(Callback, client);

  private void Callback(IAsyncResult ar) {
      var state = (HttpWebRequest)ar.AsyncState;
      using (var response = state.EndGetResponse(ar)) {
          var streamResponse = response.GetResponseStream();
          var streamRead = new StreamReader(streamResponse);
          var responseString = streamRead.ReadToEnd();
      }
  }