title: Why do i have this error? Exception thrown: 'System.Net.WebException' in System.dll C#
body: <p>I want to do a search in google using a free proxy server. Here is my code:</p>
  <pre><code>string SearchResults = &quot;http://google.com/search?q=&quot; + textBox1.Text.Trim();
  HttpWebRequest request;
  HttpWebResponse response;
  request = (HttpWebRequest)WebRequest.Create(SearchResults);
  request.Method = &quot;GET&quot;;      
  request.Proxy= new WebProxy(&quot;http://209.150.146.27:8080&quot;, true);
  //here is the issue
  response = (HttpWebResponse)request.GetResponse();
  </code></pre>
  <p>What can i do in order to fix this problem?
  I use this list of proxy servers:
  <a href="http://www.gatherproxy.com/proxylist/anonymity/?t=Transparent" rel="nofollow noreferrer">www.gatherproxy.com/proxylist/anonymity/?t=Transparent</a></p>
  <p><a href="https://i.stack.imgur.com/JH1rt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JH1rt.png" alt="enter image description here" /></a></p>