using System;

using System.Collections.Generic;

​

public class Program

{

    public class Person

    {

        public string Name { get; set; }

    }

    public static void Main()

    {

        IDictionary<object, object> Items = new Dictionary<object, object>();

        var p = new Person();

        p.Name = "Lajos";

        Items.Add("person", p);

        Items.TryGetValue("person", out var tmp);

        var httpCachedValue = (Person)tmp;

        Console.WriteLine(httpCachedValue.Name);

        httpCachedValue.Name = "Béla";

        Console.WriteLine(httpCachedValue.Name);

        Items.TryGetValue("person", out var tmp2);

        var httpCachedValue2 = (Person)tmp2;

        Console.WriteLine(httpCachedValue2.Name);

        Items.Remove("person");

        Console.WriteLine(httpCachedValue2.Name);

​

    }

}