dynamic a = new { A = 1, B = 2 };            Console.WriteLine("a.A=" + a.A);            dynamic b = new Dictionary<string,int>();            b["A"] = 6;            Console.WriteLine("b[\"A\"]=" + b["A"]);            //Following opration is not supported            //b.A=6;            //Console.WriteLine("b[\"A\"]=" + b.A);            var c = func();            Console.WriteLine("c[0].A=" + c[0].A);            //Access c[0].UnknowProperty will cause a RuntimeBinderException            dynamic test = new TestClass();            test.P1 = 34;            test.P2 = func();            Console.WriteLine("test.P1=" + test.P1);            Console.WriteLine("test.P2[1].B=" + test.P2[1].B);        static dynamic[] func()        {            return new dynamic[]{new            {                A = 124,                B = 345            },new            {                A = 2345,                B = 890            }};        }    public class TestClass    {        public int P1 { get; set; }        public dynamic P2 { get; set; }    }

    [Serializable]    public class DynamicObject : IDynamicMetaObjectProvider    {        protected DynamicObject();        public virtual IEnumerable<string> GetDynamicMemberNames();        public virtual DynamicMetaObject GetMetaObject(Expression parameter);        public virtual bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object result);        public virtual bool TryConvert(ConvertBinder binder, out object result);        public virtual bool TryCreateInstance(CreateInstanceBinder binder, object[] args, out object result);        public virtual bool TryDeleteIndex(DeleteIndexBinder binder, object[] indexes);        public virtual bool TryDeleteMember(DeleteMemberBinder binder);        public virtual bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result);        public virtual bool TryGetMember(GetMemberBinder binder, out object result);        public virtual bool TryInvoke(InvokeBinder binder, object[] args, out object result);        public virtual bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result);        public virtual bool TrySetIndex(SetIndexBinder binder, object[] indexes, object value);        public virtual bool TrySetMember(SetMemberBinder binder, object value);        public virtual bool TryUnaryOperation(UnaryOperationBinder binder, out object result);    }