public CoachPlanItemsPage(CoachPlan plan)
{
InitializeComponent();
ToAddPlan = plan;
ToAddItems = new ObservableCollection <CoachItem>(plan.CreatedItems);
ItemListView.ItemsSource = new ObservableCollection <CoachItem>();
ItemListView.ItemsSource = ToAddItems;
}
private async void PlanList_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
CoachPlan selectedPlan = PlanList.SelectedItem as CoachPlan;
await Navigation.PushAsync(new CoachPlanItemsPage(selectedPlan));
}