//public GradeValue _selGV { get; set; }
//public static string MV { get; set; }
public MainWindowViewModel()
{
storage = new Storage();
Groups = storage.getGroups();
Students = storage.getStudents();
Subjects = storage.getSubjects();
Semesters = storage.getSemesters();
Realisations = storage.getRealisations();
Registrations = storage.getRegistrations();
Grades = storage.getGrades();
GradeValues = null;
GVGrades = null;
IndexValid = NameValid = SurnameValid = true;
GNameValid = true;
SubNameValid = UrlValid = ConspectValid = true;
SemNameValid = true;
GradeNameValid = MaxValueValid = true;
DateValid = ValueValid = true;
}
