private void Initialize(FollowingParameter parameter)
 {
     _categoryService.UpdateCategory();
     SelectedIndex = (int)parameter.Restrict - 1;
     _pixivFollow  = new PixivFollow(_accountService.LoggedInAccount.Id, parameter.Restrict, _pixivClient, _queryCacheService);
     ModelHelper.ConnectTo(FollowingUsers, _pixivFollow, w => w.Users, CreateUserViewModel).AddTo(this);
 }
        private void RedirectToLoginPage(FollowingParameter parameter)
        {
            var param = new RedirectParameter {
                RedirectTo = "FollowingMain", Parameter = parameter
            };

            NavigationService.Navigate("Error.LoginRequired", param.ToJson());
        }