public void ReqestClassroomSchedule(string day, bool refresh)
 {
     if (IsLoading) _provider.CancelGeetingDailyClassroomSchedule();
     if (refresh)
     {
         IsRefreshing = true;
         _provider.GetDailyScheduleForClassroom(day);
         return;
     }
     if (day == CurrentDay) return;
     if (ScheduleExistsForDay(day))
     {
         CurrentDay = day;
         return;
     }
     IsLoading = true;
     _provider.GetDailyScheduleForClassroom(day);
 }