title: How to refresh ContentPage in pure button click handler
body: <p><strong>Context</strong></p>
  
  <p>I would like to diagnose a binding problem. Without exposing the problem details here, I decided to put a diagnostic button on my ContentPage, and would like to write a refresh in the most purest stupidest way, just to see, the already bound content shows up this way or not.</p>
  
  <p><strong>Question</strong></p>
  
  <p>So I have my button and its event handler in place, I can not figure out how to call a Refresh or similar?</p>
  
  <pre class="lang-cs prettyprint-override"><code>public partial class MainView : ContentPage
  {
      public MainView()
      {
          InitializeComponent();
      }
  
      void OnButtonClicked(object sender, EventArgs args)
      {
          // I would like to refresh this contentpage here:
      }
  }
  </code></pre>