title: How to get valid url
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/924679/c-sharp-how-can-i-check-if-a-url-exists-is-valid">C# How can I check if a URL exists/is valid?</a>  </p>
  </blockquote>
  
  
  
  <p>Work on C# vs2010.</p>
  
  <p>Want to check url are valid or not .Suppose I have three url like <code>www.google.com,www.ggg.com,www.gef.com .</code></p>
  
  <p>When I brows on www.google.com =if page available then I want a response , this page is valid and  url is valid.</p>
  
  <p>When I brows on www.ggg.com or www.gef.com =if page not available then I want a response ,this page is not valid and url is not valid.</p>
  
  <p>Is it possible ?Is there any idea ,or suggestion to solve this problem?
  Thanks in advance ,if have any query plz ask.</p>