Engage.Dnn.Publish.Article.GetOldArticleId C# (CSharp) Méthode

        public static int GetOldArticleId(int itemId)
        {
            return DataProvider.Instance().GetOldArticleId(itemId);
        }

 private void Page_Load(object sender, EventArgs e)
 {
     try
     {
         LocalizeControls();
         if (_itemType != null)
         {
             //TODO: we need to figure out PortalID so we can get the folloing items from Cache
             if (_itemType.Equals(ItemType.Category.Name, StringComparison.OrdinalIgnoreCase))
             {
                 //TODO: where can we get portalid from? NEED NEW METHOD - HK
                 Category category = Category.GetCategory(_itemId);
                 DisplayItem(category);
             }
             else if (_itemType.Equals(ItemType.Article.Name, StringComparison.OrdinalIgnoreCase))
             {
                 Article article = Article.GetArticle(_itemId);
                 DisplayItem(article);
             }
             else if (_itemType.Equals("OLDARTICLE", StringComparison.OrdinalIgnoreCase))
             {
                 int     newId   = Article.GetOldArticleId(_itemId);
                 Article article = Article.GetArticle(newId);
                 DisplayItem(article);
             }
         }
     }
     catch (Exception ec)
     {
         DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(ec);
     }
 }