private void UpdateGridJournalData()
{
int yearStart = int.Parse(comboStudyYear.SelectedItem.ToString().Split('-')[0]);
int yearEnd = int.Parse(comboStudyYear.SelectedItem.ToString().Split('-')[1]);
DateTime studyYearStart = new DateTime(yearStart, 9, 1); //1st Septemper
DateTime studyYearEnd = new DateTime(yearEnd, 7, 31); //31st of June
gridJournal.DataSource = AttendanceJournalDAL.BuildDataTable(TeacherID,
(int)this.teacherGrades[comboBoxGrade.SelectedIndex].GradeNo,
this.teacherGrades[comboBoxGrade.SelectedIndex].Section,
this.comboBoxSubject.SelectedItem.ToString(),
studyYearStart,
studyYearEnd);
}
