public static void AddStudent(Student student)
{
using (var context = new DbContext()) {
context.Students.Add(student);
context.SaveChanges();
}
StudentAddedOrDeleted?.Invoke(EventArgs.Empty);
}
public static void DeleteStudentWithPesel(string pesel)
{
using (var context = new DbContext()) {
var student = context.Students.Find(pesel);
if (student == null)
{
throw new NullReferenceException("Nie znaleziono studenta w bazie danych...");
}
context.Students.Remove(student);
context.SaveChanges();
}
StudentAddedOrDeleted?.Invoke(EventArgs.Empty);
}
