public virtual IEnumerable <TreeNavigationItemModel> GetLeftSideNavigation() { var navigationNodes = _nodeModelService.AsEnumerable() .Where(i => i.Level >= 1 && _nodeDirectAccessValidator.HasAccess(i) && !(i is HomePageModel)) .OfType <IUintraNavigationComposition>() .OrderBy(i => i.SortOrder) .Where(i => i.Navigation.ShowInMenu.Value && i.Url.HasValue()); var items = _navigationBuilder.GetTreeNavigation(navigationNodes); var home = _nodeModelService.AsEnumerable().OfType <HomePageModel>().First(); items = items.Prepend(new TreeNavigationItemModel { Id = home.Id, IsActive = IsActive(home.Id), Level = home.Level, ParentId = home.ParentId, SortOrder = home.SortOrder, Title = home.Navigation.NavigationTitle, Url = home.Url }); return(items); }