using System;

using System.Collections.Generic;

using System.Reflection;

​

public class Program

{

    public static class Util

    {

        public class ListProxy<T> : DispatchProxy

        {

            private T Object { set; get; }

​

            public static T CreateListProxy(Func<T> creator)

            {

                object proxy = Create<T, ListProxy<T>>();

                ((ListProxy<T>)proxy).Object = creator(); // Store a real instance of List<?>

                return (T)proxy;

            }

​

            protected override object Invoke(MethodInfo targetMethod, object[] args)

            {

                Console.WriteLine($"Start Running {targetMethod.Name}");

​

                var result = targetMethod.Invoke(Object, args);

​

                Console.WriteLine($"Finish Running {targetMethod.Name}\n");

​

                return result;

            }

        }

​

        private class Program

        {

            private static void Main(string[] args)

            {

                var foo = ListProxy<IList<string>>.CreateListProxy(() => new List<string>());

                foo.Add("5566");

                foreach (var item in foo)

                {

                    Console.WriteLine(item);

                }

            }

        }

    }

}

​