Question

Im a windsor noob and im having some problems getting dependency injection to work. im using a asp.net web application.

I have done the following

public interface IHandler{
    ...
}

public class Handler : IHandler{
    ...
}

then i try to register the code in global.asax application_start

container.Register(Component
    .For(typeof(IHandler))
    .ImplementedBy(typeof(Handler))
    .Named("handler"));

When i want to use the Handler i create a property

public IHandler handler{get;set;}

but when i try to use it, it is null? why? am i missing someting?

Best regards

UPDATE

The only thing i doto register/resolve is the following:

container.Register(Component
    .For(typeof(IHandler))
    .ImplementedBy(typeof(Handler))
    .Named("handler"));

and:

container.Resolve<IHandler>();

Do i need to do something else, Does it work to run this att application start?

UPDATE 2

Can the problem ocour because im trying to dependency inject on an ascx controll?

Answer 1

1. Make sure the component that has the IHandler property is also registered (and resolved) in Windsor.

2. You said this is for an ASP.NET application. The default lifestyle of Windsor components is singleton. Are you sure you want this component shared like that? You may want a transient or per-web-request lifestyle for this component.