public int RemoveTutoringTime(DateTime date, string time, int teacherId)
        {
            TutoringTimeCtrl ttCtrl = new TutoringTimeCtrl();

            return ttCtrl.RemoveTutoringTime(date, time, teacherId);
        }
        public int RemoveTutoringTime(int teacherId, DateTime date, string time)
        {
            TutoringTimeCtrl ttCtrl = new TutoringTimeCtrl();

            return ttCtrl.RemoveTutoringTime(teacherId, date, time);
        }