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POCalling POST method in WP7
 

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    <p>I am new to Windows Phone 7 application development. I am trying to call a URL in my program using POST method which takes some parameters. After the successful post I am supposed to get the response in JSON format. But I am not getting the response. The code I am using is:</p> <pre class="lang-cs prettyprint-override"><code> public void Submit() { // Prepare web request... HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(new Uri(someUrl, UriKind.Absolute)); myRequest.Method = "POST"; myRequest.ContentType = string.Format("multipart/form-data; boundary={0}", boundary); myRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), myRequest); } public string url { get; set; } private Dictionary&lt;string, string&gt; _parameters = new Dictionary&lt;string, string&gt;(); public Dictionary&lt;string, string&gt; parameters { get { return _parameters; } set { _parameters = value; } } string boundary = "----------" + DateTime.Now.Ticks.ToString(); private void GetRequestStreamCallback(IAsyncResult asynchronousResult) { HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState; Stream postStream = request.EndGetRequestStream(asynchronousResult); parameters.Add("userid", "0"); parameters.Add("locationid", "0"); writeMultipartObject(postStream, parameters); postStream.Close(); request.BeginGetResponse(new AsyncCallback(GetResponseCallback), request); } private void GetResponseCallback(IAsyncResult asynchronousResult) { HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState; HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult); Stream streamResponse = response.GetResponseStream(); StreamReader streamRead = new StreamReader(streamResponse); streamResponse.Close(); streamRead.Close(); // Release the HttpWebResponse response.Close(); } public void writeMultipartObject(Stream stream, object data) { StreamWriter writer = new StreamWriter(stream); if (data != null) { foreach (var entry in data as Dictionary&lt;string, string&gt;) { WriteEntry(writer, entry.Key, entry.Value); } } writer.Write("--"); writer.Write(boundary); writer.WriteLine("--"); writer.Flush(); } private void WriteEntry(StreamWriter writer, string key, object value) { if (value != null) { writer.Write("--"); writer.WriteLine(boundary); if (value is byte[]) { byte[] ba = value as byte[]; writer.WriteLine(@"Content-Disposition: form-data; name=""{0}""; filename=""{1}""", key, "sentPhoto.jpg"); writer.WriteLine(@"Content-Type: application/octet-stream"); //writer.WriteLine(@"Content-Type: image / jpeg"); writer.WriteLine(@"Content-Length: " + ba.Length); writer.WriteLine(); writer.Flush(); Stream output = writer.BaseStream; output.Write(ba, 0, ba.Length); output.Flush(); writer.WriteLine(); } else { writer.WriteLine(@"Content-Disposition: form-data; name=""{0}""", key); writer.WriteLine(); writer.WriteLine(value.ToString()); } } } </code></pre> <p>I cannot find what the real problem is. Anybody out there to help me out?</p>
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    1. COHi, are you able to confirm that the web server is responding to your post? In your code, it seems that you are performing your request correctly yet you don't seem to being adding any data to the body of the request. Which is what a POST should be doing. It's possible that the server isn't accepting your request.
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