title: If response redirect = true
body: <p>I send POST to a url and if the response has redirect with url(which contains jsessionid) it will be true? else false.</p>
  <p>How to write it?</p>
  <pre><code>namespace WindowsFormsApplication1
  {
      public partial class Form1 : Form
      {
          public Form1()
          {
              InitializeComponent();
          }
  
          public bool od_auth(string login, string pass)
          {
              string HTML = PostData(&quot;&quot;);
              
              return true;
          }
  
          private void Auth_Click(object sender, EventArgs e)
          {
              string login = textBox1.Text;
              string pass = textBox2.Text;
              bool avt = od_auth(login, pass);
          }
          public static string PostData(string file, string data)
          {
              var cookies = new CookieContainer();
              HttpWebRequest request = (HttpWebRequest)WebRequest.Create(file);
              request.Method = &quot;POST&quot;;
              request.CookieContainer = cookies;
              request.AllowAutoRedirect = true;
              request.ContentType = &quot;application/x-www-form-urlencoded&quot;;
              byte[] EncodedPostParams = Encoding.UTF8.GetBytes(data);
              request.ContentLength = EncodedPostParams.Length;
              request.GetRequestStream().Write(EncodedPostParams,
                                               0,
                                               EncodedPostParams.Length);
              request.GetRequestStream().Close();
              HttpWebResponse response = (HttpWebResponse)request.GetResponse();
              string html = new StreamReader(response.GetResponseStream(),
                                             Encoding.UTF8).ReadToEnd();
              return html;
          }
      }
  }
  </code></pre>