title: Xamarin.Forms.Labs - Checkboxes in ListView not working on Windows Phone 8?
body: <p>I want to display a list of checkboxes (using control from Xamarin.Forms.Labs libriary) inside a Xamarin.Forms app. I followed <a href="https://github.com/XLabs/Xamarin-Forms-Labs/wiki" rel="nofollow">Xamarin.Forms.Labs wiki</a> to initialize the app properly.</p>
  
  <p>It works fine on Android, however when I try it on Windows Phone 8 emulator, the checkboxes don't change their state when clicked/tapped.</p>
  
  <p>I have following XAML:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
                         xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                         xmlns:controls="clr-namespace:Xamarin.Forms.Labs.Controls;assembly=Xamarin.Forms.Labs"
                         x:Class="App4.CheckBoxPage"&gt;
    &lt;StackLayout&gt;
      &lt;ListView x:Name="listView"&gt;
        &lt;ListView.ItemTemplate&gt;
          &lt;DataTemplate&gt;
            &lt;ViewCell&gt;
              &lt;ViewCell.View&gt;
                &lt;controls:CheckBox DefaultText="{Binding}" HorizontalOptions="FillAndExpand" TextColor="White" FontSize="25" /&gt;
              &lt;/ViewCell.View&gt;
            &lt;/ViewCell&gt;
          &lt;/DataTemplate&gt;
        &lt;/ListView.ItemTemplate&gt;
      &lt;/ListView&gt;
    &lt;/StackLayout&gt;
  &lt;/ContentPage&gt;
  </code></pre>
  
  <p>... and simple code behind:</p>
  
  <pre><code>using System;
  using System.Linq;
  
  using Xamarin.Forms;
  
  namespace App4
  {    
      public partial class CheckBoxPage : ContentPage
      {    
          public CheckBoxPage ()
          {
              InitializeComponent ();
              listView.ItemsSource = Enum.GetValues(typeof(DayOfWeek)).OfType&lt;DayOfWeek&gt;().Select(c =&gt; c.ToString());
          }
      }
  
      public class App
      {
          public static Page GetMainPage()
          {
              return new CheckBoxPage();            
          }
      }
  }
  </code></pre>
  
  <p>Any ideas how to get the Checkboxes working?</p>