title: Find an object in a generic list with Find method
body: <pre><code>class Cache
  {
      int sizeOfCache;//no of RssFeedDocument 
      private List&lt;RssFeedDocument&gt; listOfRssFeedDocument = null;
  }
  </code></pre>
  
  <p>i want to find a object in this generic list in class based upon <code>RssFeedDocument</code> 's property <code>FeedId</code>.</p>