Castle Windsor: How to specify a constructor parameter from code?

Question

Say I have the following class

MyComponent : IMyComponent {
  public MyComponent(int start_at) {...}
}

I can register an instance of it wit

Answer 1

You could use a configuration class to read the app.config. Then register that and get windsor to use it for its dependency. Ideally my MyConfiguration would use an interface.

public class MyConfiguration
{
    public long CacheSize { get; }

    public MyConfiguration()
    {
        CacheSize = ConfigurationManager.AppSettings["cachesize"].ToLong();
    }
}



container.Register(Component.For().ImplementedBy());

container.Register(Component.For>()
.ImplementedBy>().
DependsOn(Dependency.OnValue("size", container.Resolve().CacheSize))
.LifestyleSingleton());