public AddNewSubjectPopUp()
 {
     InitializeComponent();
     BindingContext       = new AddNewSubjectViewModel(this.Navigation);
     view                 = new AddNewSubjectViewModel(Navigation);
     Semester.ItemsSource = MiscellaneousProvider.SemesterProvider;
     Period.ItemsSource   = MiscellaneousProvider.PeriodProvider;
     Day.ItemsSource      = MiscellaneousProvider.Days;
 }
 public UpdateSubjectTaken()
 {
     InitializeComponent();
     view           = new AddNewSubjectViewModel(Navigation);
     BindingContext = view;
 }