C# - Redirect In FileAttribute's OnActionExecuting Not Properly Working

I have an action called EditProfile. To secure it I have added a class RequireUserLogin inherited from ActionFilterAttribute. In the OnActionExecuting, when I redirect user to login page, before going to login page, it first execute the EditProfile action code (which i don't expect) and than redirect the user to login page. I want to not come in action code. Currently the only option I have is throw exception. Is there any other options. The code is:

public class RequireUserLogin : ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (string.IsNullOrEmpty(userID))
{
filterContext.HttpContext.Response.Redirect("http://localhost/test/login");
}
base.OnActionExecuting(filterContext);
}

The EditProfile action is:

[RequireUserLogin()]
public ActionResult EditProfile()
{
}