using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;

namespace LateBoundCalls
{
    class Program
    {
        static void Main(string[] args)
        {
            DemoTraditionalReflection();
            DemoDynamicTyping();
            Console.ReadLine();
        }


        private static void DemoTraditionalReflection()
        {
            Console.WriteLine("Using tradional reflection");
            Console.WriteLine("==========================");

            Assembly asm = Assembly.Load("MyUtilities");

            try
            {
                // Get metadata for the MyMathUtilities type.
                Type math = asm.GetType("MyUtilities.MyMathUtilities");

                // Create a MyMathUtilities object on the fly.
                object obj = Activator.CreateInstance(math);

                // Get info for Add.
                MethodInfo mi = math.GetMethod("Add");

                // Invoke method (with parameters).
                object[] args = { 10, 70 };
                Console.WriteLine("Result is: {0}", mi.Invoke(obj, args));
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }


        private static void DemoDynamicTyping()
        {
            Console.WriteLine("\nUsing dynamic typing");
            Console.WriteLine("====================");

            Assembly asm = Assembly.Load("MyUtilities");

            try
            {
                // Get metadata for the MyMathUtilities type.
                Type math = asm.GetType("MyUtilities.MyMathUtilities");

                // Create a MyMathUtilities object on the fly.
                dynamic obj = Activator.CreateInstance(math);

                // Invoke method (with parameters).
                Console.WriteLine("Result is: {0}", obj.Add(10, 70));
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}