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copied!<p>This is the code I used to post file stream to server. </p> <pre><code>private void LayoutRoot_Drop(object sender, DragEventArgs e) { _dropEventOccured = "Yes"; FileInfo[] files = e.Data.GetData(DataFormats.FileDrop) as FileInfo[]; MessageBox.Show(files.Length.ToString()); //MessageBox.Show("Dropped"); foreach (FileInfo fi in files) { _fileRead = "Yes"; _file = fi; FileStream fs = _file.OpenRead(); objByte = ReadFully(fs); fs.Close(); Post(); } } public static byte[] ReadFully(Stream input) { byte[] buffer = new byte[16 * 1024]; using (MemoryStream ms = new MemoryStream()) { int read; while ((read = input.Read(buffer, 0, buffer.Length)) > 0) { ms.Write(buffer, 0, read); } return ms.ToArray(); } } private void Post() { HttpWebRequest request = null; //request = HttpWebRequest.Create("http://localhost/ajax.aspx") as HttpWebRequest; //request = HttpWebRequest.Create("http://localhost/ajax.aspx") as HttpWebRequest; request = HttpWebRequest.Create(string.Format("http://localhost/ajax.aspx?name={0}",_file.Name )) as HttpWebRequest; //request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; request.ContentType = "multipart/form-data"; request.Method = "POST"; // Doesn't work with "GET" request.ContentLength = objByte.Length; if (request.Method == "GET") { request.BeginGetResponse(this.GetRequestStreamCallback, request); } else { MessageBox.Show("Posting..."); request.BeginGetRequestStream(this.GetRequestStreamCallback, request); } } private void GetRequestStreamCallback(IAsyncResult result) { System.Threading.Thread.Sleep(1000); HttpWebRequest request = (HttpWebRequest)result.AsyncState; using (Stream stream = request.EndGetRequestStream(result)) { stream.Write(objByte, 0, objByte.Length); stream.Close(); } request.BeginGetResponse(new AsyncCallback(GetResponseCallback), request); //HttpWebResponse response = (HttpWebResponse)result.EndGetResponse(asyncResult); } private void GetResponseCallback(IAsyncResult result) { try { HttpWebRequest request = (HttpWebRequest)result.AsyncState; while (!request.HaveResponse) { System.Threading.Thread.Sleep(1000); } HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(result); Console.WriteLine(response.StatusDescription); } catch (Exception ex) { } } </code></pre> <p>This is the code on server side:</p> <pre><code> protected void Page_Load(object sender, EventArgs e) { string saveTo = Server.MapPath("~/App_Data/") + Request.QueryString["name"]; // create a write stream FileStream writeStream = new FileStream(saveTo, FileMode.Create, FileAccess.Write); // write to the stream ReadWriteStream(Request.InputStream, writeStream); } private void ReadWriteStream(Stream readStream, Stream writeStream) { int Length = 256; Byte[] buffer = new Byte[Length]; int bytesRead = readStream.Read(buffer, 0, Length); // write the required bytes while (bytesRead > 0) { writeStream.Write(buffer, 0, bytesRead); bytesRead = readStream.Read(buffer, 0, Length); } readStream.Close(); writeStream.Close(); } </code></pre>

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