using System;

​

namespace MyNameSpace

{

    public class Program

    {

        public static void Main()

        {

            string @namespace = "MyNameSpace";

            string @class = "MyClass";

            string method = "MyMEthod";

            var myClassType = Type.GetType(string.Format("{0}.{1}", @namespace, @class));

            object instance = myClassType == null ? null : Activator.CreateInstance(myClassType); //Check if exists, instantiate if so.

            var myMethodExists = myClassType.GetMethod(method) != null;

            Console.WriteLine(myClassType);

            Console.WriteLine(myMethodExists);

        }

    }

​

    public class MyClass

    {

        public void MyMEthod() {

        }

    }

}