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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Xamarin.Forms;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;

namespace Xamarin.Forms.Controls.Issues
{
    [Preserve(AllMembers = true)]
    [Issue(IssueTracker.Bugzilla, 51642, "Delayed BindablePicker UWP", PlatformAffected.All)]
    public partial class Bugzilla51642 : ContentPage
	{
#if APP
		public Bugzilla51642 ()
		{
			InitializeComponent ();
            LoadDelayedVM();
			BoundPicker.SelectedIndexChanged += (s, e) =>
			{
				SelectedItemLabel.Text = BoundPicker.SelectedItem.ToString();
			};
		}

        public async void LoadDelayedVM()
        {
            await Task.Delay(1000);
            Device.BeginInvokeOnMainThread(() => BindingContext = new Bz51642VM());
        }
#endif
	}

	[Preserve(AllMembers=true)]
    class Bz51642VM
    {
        public IList<string> Items {
            get {
                return new List<String> { "Foo", "Bar", "Baz" };
            }
        }
    }
}