///<summary>Delete an article based on ID
        ///</summary>
        ///<param name="articleId"></param>
        public static void DeleteArticle(int articleId)
        {
            //get the article
            var a           = GetArticle(articleId);
            var cntTaxonomy = new Taxonomy.Content();

            //delete the content item
            cntTaxonomy.DeleteContentItem(a);
            //delete the article
            DataProvider.Instance().DeleteArticle(articleId);
        }
        ///<summary>Delete all articles based on a moduleid
        ///</summary>
        ///<param name="moduleId"></param>
        public static void DeleteArticles(int moduleId)
        {
            //also need to delete the Content Items
            var cntTaxonomy = new Taxonomy.Content();

            //for each article in this module
            foreach (Article a in GetArticles(moduleId))
            {
                //delete the content items for these articles
                cntTaxonomy.DeleteContentItem(a);
            }

            DataProvider.Instance().DeleteArticles(moduleId);
        }