Doing c# class library a runnable application

Question

I want to create a console applicaiton and add it to another class library projects. So my class libraries will be runnable applicaitons.

namespace MyWorker.Host
{
    class Program
    {
        static void Main(string[] args)
        {

        }
    }

    public interface IConfiguration
    {
        void Configure();
    }
}

And I am adding my MyWorker.Host as reference to MyWorker.Client class library project. And debug settings set as "Start external program".

And now I want to search client assemblies that referenced MyWorker.Host . I will find classes that implemented IConfiguration interface.

namespace MyWorker.Host
{
    class Program
    {
        static void Main(string[] args)
        {
            var implementations = AppDomain
                .CurrentDomain
                .GetAssemblies()
                .SelectMany(assemly => assemly.GetTypes())
                .Where(t => !t.IsInterface)
                .Where(t => typeof (IConfiguration).IsAssignableFrom(t));

            foreach (var assembly in implementations)
            {
                Console.WriteLine(assembly.FullName);
            }

            Console.Read();
        }
    }
}

But console writes nothing .

(If I add a concrate class in MyWorker.Host it writes console.)

Answer 1

I've done a similar thing before but had to look through DLLs for classes that implement the interface you're after using Reflection. Of course you need a means of passing in that path, which could be configurable, or just look through all subdirectories from the solution directory, etc.