title: Xamarin Forms ListView not showing TextCells
body: <p>Here is the code I am working with right now...</p>
  
  <pre><code>items = new List&lt;TextCell&gt;();
          items.Add(new TextCell { Text = "Cake", TextColor = Color.Green, Detail = "12 hours left!", DetailColor = Color.Black});
          items.Add(new TextCell { Text = "Pie", TextColor = Color.Green, Detail = "14 hours left!", DetailColor = Color.Black });
  
  
          var buy = new ContentPage
          {
              Title = "Buy",
              Content = new StackLayout
              {
                  VerticalOptions = LayoutOptions.Center,
                  Children = {
                      new ListView
                      {
                         ItemsSource = items,
                         ItemTemplate = new DataTemplate(typeof(TextCell))
                      }
                  }
              }
          };
  </code></pre>
  
  <p>The ListView is populated with two blank views with no content.</p>
  
  <p>Am I missing some property?</p>