Implement Unity MVC 5 dependency injection in ActionFilter

Question

I'm trying to inject this user service via Unity (mvc5) in an actionfilter but it is null. How can I implement this?

public class TestFilter : ActionFilterAttribute
{
    // this is always null
    [Dependency]
    public IUserService UserService { get; set; }

    // other members
}

Have you registered UnityFilterAttributeFilterProvider on the FilterProviders ? — Sam FarajpourGhamari
– Sam FarajpourGhamari, Commented Aug 3, 2015 at 13:31
Here is an explanation and a suggestion to a similar question that may help you. — Anish Patel
– Anish Patel, Commented Aug 3, 2015 at 13:37

Sam FarajpourGhamari · Accepted Answer · 2015-08-03 13:46:26Z

2

You must register UnityFilterAttributeFilterProvider as a FilterProvider first.

Modify the App_Start > UnityMvcActivator's Start method like this:

public static void Start()
{
    var container = UnityConfig.GetConfiguredContainer();

    FilterProviders.Providers.Remove(FilterProviders.Providers.OfType<FilterAttributeFilterProvider>().First());
    FilterProviders.Providers.Add(new UnityFilterAttributeFilterProvider(container));

    DependencyResolver.SetResolver(new UnityDependencyResolver(container));

    Microsoft.Web.Infrastructure.DynamicModuleHelper.DynamicModuleUtility.RegisterModule(typeof(UnityPerRequestHttpModule));
}

If you could not find the method. You probably installed wrong or out of date package. consider installing Install-Package Unity.Mvc on the package manager console.

answered Aug 3, 2015 at 13:46

Sam FarajpourGhamari

14.8k4 gold badges56 silver badges56 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Implement Unity MVC 5 dependency injection in ActionFilter

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related