title: post data through httpWebRequest
body: <p>I need to "Post" some data to an external website using
  <code>HttpWebRequest</code> object from my application(desktop) and get a response
  back into my application through <code>HttpWebResponse</code> object. 
  But the webpage on which i m posting data have textboxes which have dynamic names.</p>
  
  <p>How can I get the name of those textboxes and post data in <code>HttpWebResquest</code>?</p>
  
  <p>For example when I load the page the textbox name is like this <code>U2FsdGVkX183MTQyNzE0MrhLOmUpqd3eL60xF19RmCwLlSiG5nC1H6wvtBDhjI3uM1krX_B8Fwc</code> but when I refresh the page name change to this <code>U2FsdGVkX182MjMwNjIzMPAtotst_q9PP9TETomXB453Mq3M3ZY5HQt70ZeyxbRb118Y8GQbgP8</code>.</p>
  
  <p>Thanks for any suggestions.</p>