private void InitSemester()
{
_allSemesters = _semesterRepository.GetAllSemesters().ToList();
Semesters.ItemsSource = _allSemesters;
if (_allSemesters.Count == 0)
{
OutOfSemestersHandler();
return;
}
try
{
_displayedSemester = _semesterRepository.GetSemesterByDate(DateTime.Now);
}
catch (ArgumentException)
{
_displayedSemester = _allSemesters[0];
}
Semesters.SelectedItem =
_allSemesters.First(
sem =>
(sem.SemesterNumber == _displayedSemester.SemesterNumber) &&
sem.YearValue == _displayedSemester.YearValue);
}