private void HalfDayTimer_Tick(object sender, object e)
        {
            DebugUtils.WriteLine("HalfDayTimer_Tick executed");
            textBlockDirectorAssistant.Text = getCurrentMudYrd();
            nobOgrList = SentinelsManager.getNobOgrList(getWeekDayUpper(LocalizationUtils.GetDefaultCultureInforName()));

            listViewNobetAlanlariVeNobOgr.ItemsSource = null;
            listViewNobetAlanlariVeNobOgr.ItemsSource = nobOgrList;
            LoadCourseTable();
        }
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);
            var pics = PicFileManager.GetPicFilesFromStorePath();

            clockTimer.Tick += ClockTimer_Tick;
            clockTimer.Start();

            HalfDayTimer.Tick += HalfDayTimer_Tick;
            HalfDayTimer.Start();

            // PresentationPage.Current.isInEditMode = false;

            textBlockDirectorAssistant.Text = getCurrentMudYrd();
            nobOgrList = SentinelsManager.getNobOgrList(getWeekDayUpper(LocalizationUtils.GetDefaultCultureInforName()));

            listViewNobetAlanlariVeNobOgr.ItemsSource = null;
            listViewNobetAlanlariVeNobOgr.ItemsSource = nobOgrList;
            textBlockHeader1.Text = Settings.getValueByKey("SCHOOLNAME1", "");
            textBlockHeader2.Text = Settings.getValueByKey("SCHOOLNAME2", "");
        }
        private void ClockTimer_Tick(object sender, object e)
        {
            textBlockClock.Text = getNow();
            textBlockToday.Text = getTodayUpper(LocalizationUtils.GetDefaultCultureInforName());

            if (!SchoolTimeSpanManager.isSchoolTimeSpansEmpty())
            {
                string   strdayofweek = DateTime.Today.ToString("dddd").ToUpper();
                TimeSpan tsnow        = DateTime.Now.TimeOfDay;
                CourseTableRowIdxAndRemainingTime i_and_t;

                i_and_t = SchoolTimeSpanManager.IndexByTime(tsnow, SchoolTimeSpanManager.schoolTimeSpansByWeekDay(strdayofweek));

                try
                {
                    listViewCourseTable.SelectedIndex = i_and_t.idx;
                }
                catch
                {
                }

                TextBlockRemeainingTime.Text = i_and_t.RemainingTime.ToString(@"hh\:mm\:ss");
            }
        }