title: Add Children to element of type Page created in code behind Windows Phone 8.1
body: <p>I can create a new element of type <code>Page</code> in code behind, but I want to add children elements of type <code>UIElement</code> as I would to a <code>Grid</code> like: <code>myGrid.Children.Add(myUIElement);</code><br>
  I don't have the <code>Children</code> property and setting the <code>Content</code> property does not work.<br>How can I achieve this?
  <br><br>
  <b>UPDATE:</b><br>
  This is what I have so far, but does not work:</p>
  
  <pre><code>Page myNewPage = new Page();
  Grid myGrid = new Grid();
  TextBlock myText = new TextBlock();
  myText.Text = "I am a TextBlock!";
  myGrid.Children.Add(myText);
  myNewPage.Content = myGrid;
  
  Frame.Navigate(myNewPage.GetType());
  </code></pre>