private void SaveSerieExerciseDay()
        {
            if (SerieExerciseDayAdd.Id == 0)
            {
                SerieExerciseDayAdd.ExerciseDayId = ExerciseDay.Id;
                SerieExerciseDayAdd.Order         = ++Order;
                new SerieExerciseDayRepository().Save(SerieExerciseDayAdd);
                SerieExerciseDayList.Add(SerieExerciseDayAdd);
            }
            else
            {
                new SerieExerciseDayRepository().Update(SerieExerciseDayAdd);
                SerieExerciseDayList = new ObservableCollection <SerieExerciseDay>(new SerieExerciseDayRepository().GetAll());
                OnPropertyChanged("SerieExerciseDayList");
            }

            SerieExerciseDayAdd = new SerieExerciseDay();
            OnPropertyChanged("SerieExerciseDayAdd");
        }
 private void DeleteSerieExerciseDay(SerieExerciseDay serieExerciseDay)
 {
     new SerieExerciseDayRepository().Delete(serieExerciseDay);
     SerieExerciseDayList.Remove(serieExerciseDay);
 }