title: passing multiple parameters in url in MVC 3
body: <p>I have action method in controller called "Registration" as</p>
  
  <pre><code>public ActionResult Facility(int id = 0, int contractId = 0)
  </code></pre>
  
  <p>when I call this method from url like </p>
  
  <pre><code>/Registration/Facility/0?contractId=0
  </code></pre>
  
  <p>it works fine. Now when I try to construct above url in another method like </p>
  
  <pre><code>return RedirectToAction("Facility/0?contractId="+ model.ContractId);
  </code></pre>
  
  <p>it doesn't work, the url in browser is not constructed well it comes like </p>
  
  <pre><code>/Registration/Facility/0%3fcontractId%3d0
  </code></pre>
  
  <p>can anyone please tell me what wrong I'm doing here?</p>