public void ClearDictionaries()
{
Disciplines.Clear();
Groups.Clear();
Teachers.Clear();
Time.Clear();
}
public void ChangeListDisciplines(List <Discipline> disciplines)
{
Disciplines.Clear();
foreach (var item in disciplines)
{
if (item is Exam)
{
Disciplines.Add(new Exam(item as Exam));
}
else
{
Disciplines.Add(new Credit(item as Credit));
}
}
}