How to load assemblies located in a folder in .NET Core console app

Question

I'm making a console app on the .NET Core platform and was wondering, how does one load assemblies (.dll files) and instantiate classes using C# dynamic features? It seems so much different than .NET 4.X and it's not really documented...

For example, let's say I have a class library (.NET Core) and it has only one class:

namespace MyClassLib.SampleClasses
{
    public class Sample
    {
        public string SayHello(string name)
        {
            return $"Hello {name}";
        }

        public DateTime SayDateTime()
        {
            return DateTime.Now;
        }
    }
}

So the name of the dll file would be MyClassLib.dll and it's located in /dlls/MyClassLib.dll.

Now I want to load this in a simple console app (.NET Core) and instantiate the Sample class and call the methods using dynamic features of C# in the following console app:

namespace AssemblyLoadingDynamic
{
    public class Program
    {
        public static void Main(string[] args)
        {
            // load the assembly and use the classes
        }
    }
}

Note: By .NET Core, I mean the RC2 version.

Answer 1

Currently running against netcoreapp1.0 you don't actually need to go to the extent of implementing your own AssemblyLoader. There is a Default that exists which works just fine. (Hence @VSG24 mentioning that the Load doesn't do anything).

using System;
using System.Runtime.Loader;

namespace AssemblyLoadingDynamic
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var myAssembly = AssemblyLoadContext.Default.LoadFromAssemblyPath(@"C:\MyDirectory\bin\Custom.Thing.dll");
            var myType = myAssembly.GetType("Custom.Thing.SampleClass");
            var myInstance = Activator.CreateInstance(myType);
        }
    }   
}

with project.json looking like:

{
  "version": "1.0.0-*",
  "buildOptions": {
    "emitEntryPoint": true
  },

  "dependencies": {
    "Microsoft.NETCore.App": {
      "type": "platform",
      "version": "1.0.1"
    },
    "System.Runtime.Loader": "4.0.0"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": "dnxcore50"
    }
  }
}