C#-System.Dynamic.ExpandoObject

             dynamic dynamicObject = new System.Dynamic.ExpandoObject();

             dynamicObject.Id = Guid.NewGuid();

             (dynamicObject as ICollection<KeyValuePair<string, object>>).Add(new KeyValuePair<string, object>("Name", "ChenFeng"));

             Console.WriteLine(dynamicObject.Id);

             Console.WriteLine(dynamicObject.Name);