Dependency Injection with Ninject and Filter attribute for asp.net mvc

See this answer: Custom Authorization MVC 3 and Ninject IoC

If you want to use constructor injection then you need to create an attribute and a filter.

/// Marker attribute
public class MyAuthorizeAttribute : FilterAttribute { }

/// Filter
public class MyAuthorizeFilter : IAuthorizationFilter
{
      private readonly IUserService _userService;
      public MyAuthorizeFilter(IUserService userService)
      {
          _userService = userService;
      }

      public void OnAuthorization(AuthorizationContext filterContext)
      {
          var validUser = _userService.CheckIsValid();

          if (!validUser)
          {
              filterContext.Result = new RedirectToRouteResult(new RouteValueDictionary { { "action", "AccessDenied" }, { "controller", "Error" } });
          }
      }
}

Binding:

this.BindFilter<MyAuthorizeFilter>(System.Web.Mvc.FilterScope.Controller, 0).WhenControllerHas<MyAuthorizeAttribute>();

Controller:

[MyAuthorizeAttribute]
public class YourController : Controller
{
    // ...
}