/// <summary>
 /// Add the Dish as built in the page to the meal, and save to file
 /// </summary>
 private void AddToMealExecute()
 {
     SelectedMeal.AddDish(EntryName, InputDishCategories, UserData);
     if (!UserDays.Select(day => day.ThisDate).Contains(SelectedDay.ThisDate))
     {
         UserDays.Add(SelectedDay);
     }
     UserDaysIO.WriteUserDaysToJSON(UserDays);
 }