title: How to unblock website which is blocked, using C#?
body: <p>This is some code to unblock any website from listview, but now I want to unblock a website which has previously been blocked. How can I do this?</p>
  
  <pre><code>String path = @"C:\Windows\System32\drivers\etc\hosts";
  StreamWriter sw = new StreamWriter(path, true);
  String sitetoblock = "\n 127.0.0.1 http://"+listView1.SelectedItems[0].Text+"";
  sw.Write(sitetoblock);
  sw.Close();
  MessageBox.Show(listView1.SelectedItems[0].Text " blocked");
  </code></pre>