// @nuget: Z.Expressions.Eval

​

using System;

using System.Collections.Generic;

using Z.Expressions;

public class Program

{

    public static void Main()

    {

        var dictionary = new Dictionary<string, Dictionary<string, int>>();

        dictionary["a"] = new Dictionary<string, int>() { {"b", 2}};

        var result = Eval.Execute("dict[\"a\"][\"b\"]", new { dict = dictionary });

        Console.WriteLine(result);

    }

}