using Microsoft.Extensions.Configuration;

using System;

using System.Collections.Generic;

​

var root = new ConfigurationBuilder()

   .AddInMemoryCollection(new Dictionary<string, string>

   {

      { "Keys:0", "shallow" },

      { "Keys:0:Secret", "deep" }

   })

   .Build();

​

Console.WriteLine("----------");

​

var x1 = new X1();

​

root.Bind(x1);

​

foreach (var key in x1.Keys)

{

   Console.WriteLine(key ?? "null");

}

​

Console.WriteLine("----------");

​

var x2 = new X2();

​

root.Bind(x2);

​

foreach (var key in x2.Keys)

{

   Console.WriteLine(key.Secret ?? "null");

}

​

Console.WriteLine("----------");

​

class X1

{

   public string[] Keys { get; set; }

}

​

class X2

{

   public Key[] Keys { get; set; }

}

​

class Key

{

   public string Secret { get; set; }

}