public void CategorySubscribe(int catid, bool remove) { var user = HttpContext.Current.User.Identity.Name; var member = Membership.GetUser(user, true); if (member != null && member.ProviderUserKey != null) { if (remove) { Subscriptions.RemoveCategorySubscription((int)member.ProviderUserKey, catid); } else { Subscriptions.AddCategorySubscription((int)member.ProviderUserKey, catid); } } }