C# IContentLoader.Get方法代码示例

        public static void RenderBreadCrumb(this HtmlHelper html, ContentReference contentLink = null,
            IContentLoader contentLoader = null)
        {
            contentLink = contentLink ?? html.ViewContext.RequestContext.GetContentLink();

            contentLoader = contentLoader ?? ServiceLocator.Current.GetInstance<IContentLoader>();

            var pagePath = NavigationPath(contentLink, contentLoader);

            var path = FilterForVisitor.Filter(pagePath).OfType<PageData>().Select(x => x.PageLink);

            if (!path.Any())
            {

            }

            var writer = html.ViewContext.Writer;

            writer.WriteLine("<ol class=\"breadcrumb\">");

            foreach (var part in path)
            {
                if (part.CompareToIgnoreWorkID(contentLink))
                {
                    writer.WriteLine("<li class=\"active\">");

                    var currentPage = contentLoader.Get<PageData>(contentLink);

                    writer.WriteLine(html.Encode(currentPage.PageName));
                }
                else
                {
                    writer.WriteLine("<li>");
                    writer.WriteLine(html.PageLink(part));
                }

                writer.WriteLine("</li>");
            }

            writer.WriteLine("</ol>");
        }

        private static IEnumerable<PageData> NavigationPath(ContentReference contentLink, IContentLoader contentLoader,
            ContentReference fromLink = null)
        {
            fromLink = fromLink ?? ContentReference.RootPage;
            var path =
                contentLoader.GetAncestors(contentLink)
                    .Reverse()
                    .SkipWhile(x => ContentReference.IsNullOrEmpty(x.ParentLink) ||
                                    !x.ParentLink.CompareToIgnoreWorkID(ContentReference.StartPage))
                    .OfType<PageData>()
                    .ToList();

            var currentPage = contentLoader.Get<IContent>(contentLink) as PageData;

            if (currentPage != null)
            {
                path.Add(currentPage);
            }
            return path;
        }

        public static void RenderSubNavigation(this HtmlHelper html, ContentReference contentLink = null,
            IContentLoader contentLoader = null)
        {
            contentLink = contentLink ?? html.ViewContext.RequestContext.GetContentLink();
            contentLoader = contentLoader ?? ServiceLocator.Current.GetInstance<IContentLoader>();

            //hitta alla sidor mellan nuvarande sida och start, uppifrån ner

            var path =
                NavigationPath(contentLink, contentLoader, ContentReference.StartPage).Select(x => x.PageLink).ToList();

            //

            var currentPage = contentLoader.Get<IContent>(contentLink) as PageData;

            if (currentPage != null)
            {
                path.Add(currentPage.PageLink);
            }

            var root = path.FirstOrDefault();
            if (root == null)
            {
                return;
            }

            RenderSubNavigationLevel(html, root, path, contentLoader);
        }

    public static void RenderBreadcrumb(
      this HtmlHelper html,
      ContentReference contentLink = null,
      IContentLoader contentLoader = null)
    {
      contentLink = contentLink ??
        html.ViewContext.RequestContext.GetContentLink();
      contentLoader = contentLoader ??
        ServiceLocator.Current.GetInstance<IContentLoader>();

      var pagePath = NavigationPath(contentLink, contentLoader);
      var path = FilterForVisitor.Filter(pagePath)
        .OfType<PageData>()
        .Select(x => x.PageLink);
      if (!path.Any())
      {
        //Nothing to render, no need to output an empty list.
        return;
      }

      var writer = html.ViewContext.Writer;

      writer.WriteLine("<ol class=\"breadcrumb\">");

      foreach (var part in path)
      {
        if (part.CompareToIgnoreWorkID(contentLink))
        {
          writer.WriteLine("<li class=\"active\">");

          //For the current page there's no point in outputting a link.
          //Instead output just the (encoded) page name.
          var currentPage = contentLoader.Get<PageData>(contentLink);
          writer.WriteLine(html.Encode(currentPage.PageName));
        }
        else
        {
          writer.WriteLine("<li>");
          writer.WriteLine(html.PageLink(part));
        }

        writer.WriteLine("</li>");
      }

      writer.WriteLine("</ol>");
    }

    private static IEnumerable<PageData> NavigationPath(
      ContentReference contentLink,
      IContentLoader contentLoader,
      ContentReference fromLink = null)
    {
      fromLink = fromLink ?? ContentReference.RootPage;

      //Find all pages between the current and the 
      //"from" page, in top-down order.
      var path = contentLoader.GetAncestors(contentLink)
          .Reverse()
          .SkipWhile(x =>
            ContentReference.IsNullOrEmpty(x.ParentLink)
            || !x.ParentLink.CompareToIgnoreWorkID(fromLink))
          .OfType<PageData>()
          .ToList();

      //In theory the current content may not be a page.
      //We check that and, if it is, add it to the end of
      //the content tree path.
      var currentPage = contentLoader
        .Get<IContent>(contentLink) as PageData;
      if (currentPage != null)
      {
        path.Add(currentPage);
      }
      return path;
    }

 private static void SetAdditionalContextValuesForContent(this UrlHelper urlHelper, PageReference pageLink, RouteValueDictionary values, IContentLoader contentQueryable, IPermanentLinkMapper permanentLinkMapper, LanguageSelectorFactory languageSelectorFactory)
 {
     bool IdKeep = HttpContext.Current.Request.QueryString["idkeep"] != null;
     contentQueryable = contentQueryable ?? ServiceLocator.Current.GetInstance<IContentLoader>();
     permanentLinkMapper = permanentLinkMapper ?? ServiceLocator.Current.GetInstance<IPermanentLinkMapper>();
     languageSelectorFactory = languageSelectorFactory ?? ServiceLocator.Current.GetInstance<LanguageSelectorFactory>();
     IContent content = contentQueryable.Get<IContent>(pageLink, languageSelectorFactory.Fallback(values[RoutingConstants.LanguageKey] as string ?? ContentLanguage.PreferredCulture.Name, true));
     if (content == null)
         return;
     if (IdKeep)
         values["id"] = (object)content.ContentLink.ToString();
     UrlExtensions.SetAdditionalContextValuesForPage(values, IdKeep, content);
 }