As I remember in EF navigation property should be virtualnavigation property should be virtual:
public class Blog { public int BlogId { get; set; } public string Name { get; set; } public string Url { get; set; } public string Tags { get; set; } public virtual ICollection<Post> Posts { get; set; } } But I look at EF Core and don't see it as virtual:
public class Student { public int ID { get; set; } public string LastName { get; set; } public string FirstMidName { get; set; } public DateTime EnrollmentDate { get; set; } public ICollection<Enrollment> Enrollments { get; set; } } Is it not required anymore?