DynamicObject sample code

DynamicObjectSample.cs

using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace DynamicObjectExample2
{
    class Program
    {
        static void Main(string[] args)
        {
            dynamic d = CreateDynamicObject();

            Console.WriteLine("Prop1: {0}", d.Prop1);
            Console.WriteLine("Prop2: {0}", d.Prop2);
            Console.WriteLine("Prop3: {0}", d.Prop3);

            d.InvokeVoid();
            var e = d.InvokeAdd(1, 2);

            Console.WriteLine("e={0}", e);

            Console.Read();
        }

        static dynamic CreateDynamicObject()
        {
            dynamic d = new MyDynamicObject();

            // assign property
            d.Prop1 = 1;
            d.Prop2 = 2;
            d.Prop3 = 3;

            // assign void method.
            d.InvokeVoid = new Action(() => Console.WriteLine("InvokeVoid."));

            // assign returnable method.
            d.InvokeAdd = new Func<int, int, int>((a, b) => a + b);

            return d;
        }
    }

    public class MyDynamicObject : DynamicObject
    {
        private IDictionary<string, object> _objectMembers = new Dictionary<string, object>();

        public override bool TryGetMember(GetMemberBinder binder, out object result)
        {
            if (!this._objectMembers.ContainsKey(binder.Name))
            {
                result = null;
                return false;
            }
            else
            {
                result = this._objectMembers[binder.Name];
                return true;
            }
        }

        public override bool TrySetMember(SetMemberBinder binder, object value)
        {
            if (!this._objectMembers.ContainsKey(binder.Name))
            {
                this._objectMembers.Add(binder.Name, value);
                return true;
            }
            else
            {
                this._objectMembers[binder.Name] = value;
                return true;
            }
        }
    }
}