How to restrict access to specific classes in C#?

Question

I have 2 projects, a website and a proxy library (dll)

Proxy Project has..

public class Client
{
}

public class Proxy
{
    public Client GetClient()
    {
        return new Client();
    }
}

How can I prevent the website from creating a new instance of Client but allow it to create an instance of Proxy, and still run GetClient?

Answer 1

You can change Client to:

internal class Client
{
}

That way the website project can't even see the Client class, or you could do:

public class Client
{
   internal Client()
   {

   }
}

That way the website can see it and interact with it, but not actually construct an instance.