Register global filters in ASP.Net MVC 4 and Autofac

Question

I have a filter like this one:

public class CustomFilterAttribute : ActionFilterAttribute, IAuthorizationFilter
{
    public MyPropery Property { get; set; }         


        

Answer 1

You should now use Pete's solution now to do this. Thanks to him for an updated solution.

I finally made it, here is how to do it:

First create your attribute with a constructor with all dependencies

public class CustomFilterAttribute : ActionFilterAttribute, IAuthorizationFilter
{
    private IProperty _property;

    public CustomFilterAttribute(IProperty repository)
    {
        _property = property;
    }
    ....
 }

Register everything you need in autofac

var builder = new ContainerBuilder();
builder.RegisterControllers(Assembly.GetExecutingAssembly());

builder.RegisterType().As();
builder.RegisterType().SingleInstance();

builder.RegisterFilterProvider();

IContainer container = builder.Build();

DependencyResolver.SetResolver(new AutofacDependencyResolver(container));

Register your global filter like that

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
    filters.Add(new HandleErrorAttribute());
    filters.Add(DependencyResolver.Current.GetService());
}

Make sure in your global.asax you register first Autofac and then the global filters.

Now, you don't need property injection anymore, constructor injection will work fine which is a good thing!