Untitled

public partial class StartPage : ContentPage
	{
		public ObservableCollection<LearnItem> Courses = new ObservableCollection<LearnItem>(CoursesDatabase.Courses);

		public StartPage ()
		{
			InitializeComponent ();
			Title = "Learn C# with me!";
			BindingContext = this;
			coursesListView.ItemsSource = Courses;
		}

        async void coursesListView_ItemSelected(System.Object sender, Xamarin.Forms.SelectedItemChangedEventArgs e)
        {
			var learnItem = e.SelectedItem as LearnItem;

			await Navigation.PushAsync(new LearnItemDetailsPage(learnItem));
        }
    }