Conditional constructor parameter injection

[bounav]

Hello,

I'd like to be able to register callback that lets me do some checks on the type being resolved before resolving a constructor dependency.

Something very similar to property injection on existing instance.

As well as having the factory available in the registration's lambda callback, it would be super useful to know the type of the class of which the constructor is being resolved.

public class HelloWorld
{
    public HelloWord(IFoo foo)
    {
        ...
    }
}

registry.Register<IFoo>((factory, serviceType) =>
     {
          return serviceType.Namespace.Contains("Blahblah") 
              ? factory.GetInstance<Foo>()
              : factory.GetInstance<Bar>();
     }

At the moment it seems the only way to achieve this is using an initializer?

PS: Did I mention I'd like to do all this with property injection disabled?

[seesharper]

You can check out the RegisterConstructorDependency method . It passes the parameter for which the dependency is being injected.
Check out this blog post that I wrote about logging a while back. It uses the RegisterConstructordependency to provide loggers that are tied to the services that the loggers are being injected into to.
http://www.lightinject.net/webapirequestlogging/

[bounav]

Thanks! I can't believe I missed it in the documentation.

The RegisterConstructordependency method is indeed just what I'm looking for.

The namespace of the declaring type (e.g. HelloWorld in my original example) is accessible via the ParameterInfo:

if (parameterInfo.Member.DeclaringType.Namespace.Contains("Blahblah"))
{
   ...
}

I'll close this issue now.
Thanks again for pointing me in the right direction (once more)!