title: How to insert CookieCollection to CookieContainer?
body: <p>After I get response from httpwebrequest, I'd like the cookies obtained to save for the purpose of using them in another httbwebrequest. However, I'd need to insert CookieCollection to CookieContainer. How do I do that? Tried to do:</p>
  
  <pre><code>request.Cookiecontainer.add(response.Cookies);
  </code></pre>
  
  <p>but this keeps getting out of error: Object reference not set to an instance of an object.</p>