string param = "username=kerimemre@yahoo.com&password=123456";
            string url = "http://176.53.10.219:8089/login";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "POST";
            request.ContentLength = param.Length;
            request.ContentType = "application/x-www-form-urlencoded";
            request.CookieContainer = new CookieContainer();

            using (Stream stream = request.GetRequestStream())
            {
                byte[] paramAsBytes = Encoding.Default.GetBytes(param);
                stream.Write(paramAsBytes, 0, paramAsBytes.Count());
            }

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                MessageBox.Show(response.ToString());
                MessageBox.Show(response.Cookies.ToString());
                foreach (var cookie in response.Cookies)
                {
                    var properties = cookie.GetType()
                                           .GetProperties()
                                           .Select(p => new
                                           {
                                               Name = p.Name,
                                               Value = p.GetValue(cookie)
                                           });


                    foreach (var property in properties)
                    {
                        MessageBox.Show(property.Value.ToString());

                    }
                }