Reflekcja assembly, instancja i metoda, C#

Reflekcja assembly, instancja i metoda

//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

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

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            
            string assemblyName="userAssembly";
            string typeName="Rextester.Program";
            string methodName="testrun";
            
            //foreach(var a in AppDomain.CurrentDomain.GetAssemblies()) Console.WriteLine(a.FullName);
            var assembly = AppDomain.CurrentDomain.GetAssemblies().Where(x=>x.FullName.StartsWith(assemblyName)).FirstOrDefault();
            if(assembly==null) return;
            Console.Write("assembly: ");
            Console.WriteLine(assembly.FullName);
            
            //foreach(var t in assembly.GetTypes()) Console.WriteLine(t.FullName.Split('+')[0]);
            var type = assembly.GetTypes().Where(x=>x.FullName.StartsWith(typeName)).FirstOrDefault();
            if(type==null) return;
            Console.Write("type: ");
            Console.WriteLine(type);
            
            object instance = Activator.CreateInstance(type);
            if(instance==null) return;
            Console.Write("instance: ");
            Console.WriteLine(instance);
            
            //foreach(var m in type.GetMethods())  Console.WriteLine(m.Name);
            var method = type.GetMethod(methodName);
            if(method==null) return;
            Console.Write("method: ");
            Console.WriteLine(method);
            object ret = method.Invoke(instance, new object[] {"udało się!"});
            Console.Write("rezultat: ");
            Console.WriteLine(ret);

}
        
        
        public object testrun(string arg)
        {
            Console.WriteLine("START");
            Console.WriteLine(arg);
            Console.WriteLine("KONIEC");
            return 99m;
        }
    }
}


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