private void completedGoalView_RightTapped(object sender, RightTappedRoutedEventArgs e)
        {
            GridView gridView = (GridView)sender;

            archiveContextMenu.ShowAt(gridView, e.GetPosition(gridView));
            var goalInContext = ((FrameworkElement)e.OriginalSource).DataContext;

            goalInContextContainer = (goal.completedGoal)goalInContext;
        }
 private void deleteGoalFromContext(object sender, RoutedEventArgs e)
 {
     goal.completedGoal goalToDelete = goalInContextContainer;
     completedGoalsToDisplay.Remove(goalToDelete);
     goal.completedGoal.listOfCompletedGoals = completedGoalsToDisplay;
     goal.saveGoals();
     if (completedGoalsToDisplay.Count == 0)
     {
         completedGoalGridView.Visibility     = Visibility.Collapsed;
         noCompletedGoalsTextBlock.Visibility = Visibility.Visible;
     }
 }