using System;

using Microsoft.EntityFrameworkCore;

public class Program

{

    public static void Main()

    {

        var h = HierarchyId.Parse("/");

        Console.WriteLine("It worked: {0}, root would be: {1}", h.ToString(), HierarchyId.GetRoot());

        Console.WriteLine("h is{0} root", (h.GetLevel() == 0 ? "": " not"));

        var c = h.GetDescendant(null, null);

        Console.WriteLine("Descendent: {0} on Level {1}", c.ToString(), c.GetLevel());

    }

}