How to pass parameters to a custom ActionFilter in ASP.NET MVC 2?

I'm trying to create a custom ActionFilter which operates on a set of parameters that would be passed to it from the controller.

So far, my customer ActionFilter looks like this:

public class CheckLoggedIn : ActionFilterAttribute
{
    public IGenesisRepository gr { get; set; }
    public Guid memberGuid { get; set; }

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        Member thisMember = gr.GetActiveMember(memberGuid);
        Member bottomMember = gr.GetMemberOnBottom();

        if (thisMember.Role.Tier <= bottomMember.Role.Tier)
        {
            filterContext
                .HttpContext
                .Response
                .RedirectToRoute(new { controller = "Member", action = "Login" });
        }

        base.OnActionExecuting(filterContext);
    }
}

I know I still need to check for nulls, etc. but I can't figure out why gr and memberGuid aren't successfully being passed. I'm calling this Filter like this:

    [CheckLoggedIn(gr = genesisRepository, memberGuid = md.memberGUID)]
    public ActionResult Home(MemberData md)
    {
        return View(md);
    }

genesisRepository and md are being set in the controller's constructor.

I'm not able to get this to compile. The error I get is:

Error   1   'gr' is not a valid named attribute argument because it is not a valid attribute parameter type
Error   2   'memberGuid' is not a valid named attribute argument because it is not a valid attribute parameter type

I double checked that gr and memberGuid were the same types as genesisRepority and md.memberGUID, What is causing these errors?

Solution

Thanks to jfar for offering a solution.

Here's the Filter I ended up using:

public class CheckLoggedIn :