title: Problems accessing rootviewController of navcontroller iphone
body: <p>Im working off the seismic xml iphone example.
  In that example there is simply the application delegate which has a rootViewController of type UITableViewController.</p>
  
  <p>I wanted to modify it slightly so that I would have a navigationController and use its rootViewController as the table view. My root view controller class for my navigation controller is named "firstLevelViewController"</p>
  
  <p>In the sample code it says</p>
  
  <pre><code> [rootViewController.tableView reloadData];
  </code></pre>
  
  <p>I want to say <code>[navController.firstLevelViewController.tableView reloadData]</code></p>
  
  <p>but I get errors saying "request for member firstLevelViewController in something is not a structure or union"</p>
  
  <p>How can I reference the rootViewController of the navigationcontroller from the main app delegate?</p>