title: Xamarin NSNotificatioCenter: How can I get the NSObject being passed?
body: <p>I am trying to post a notification in a view from my app to another one using NSNotificationCenter. So in my destination class I create my observer as follows:</p>
  
  <pre><code>NSNotificationCenter.DefaultCenter.AddObserver ("ChangeLeftSide", delegate {ChangeLeftSide(null);});
  </code></pre>
  
  <p>and I have my method:</p>
  
  <pre><code>public void ChangeLeftSide (UIViewController vc)
  {
      Console.WriteLine ("Change left side is being called");
  }
  </code></pre>
  
  <p>Now from another UIViewController I am posting a notification as follows:</p>
  
  <pre><code>NSNotificationCenter.DefaultCenter.PostNotificationName("ChangeLeftSide", this);
  </code></pre>
  
  <p>How can I access the view controller that is being passed in my post notification in my destination class? In iOS it is very straight forward but I cannot seem to find my way in monotouch (Xamarin)...</p>