private void btnSaveArticle_Click(object sender, RoutedEventArgs e)
        {
            //if (_documentManager.SaveDocument())
            //{

            //    MessageBox.Show("保存成功!");
            //}

            //TextRange range = new TextRange(body.Document.ContentStart, body.Document.ContentEnd);
            Article article = new Article();
            article.ArticleTitle = tbArticleTitle.Text;
            article.ArticleContent = rtbArticleBody.RTF();
            //article.AUserID = ClassRoom.Common.TicketInfo.UserNO;
            article.AUserID = 4;
            article.UploadTime = DateTime.Now;
            ClassRoomEntities entities = new ClassRoomEntities();
              try
                {
                entities.Articles.AddObject(article);

                int result =entities.SaveChanges();
                if (result > 0)
                    MessageBox.Show("保存成功");
            }
            catch (Exception ee)
            {
                throw ee.InnerException;
            }
        }
 /// <summary>
 /// 复制
 /// </summary>
 public void Clone(Article entity)
 {
     this.ArticleID = entity.ArticleID;
         this.ArticleContent = entity.ArticleContent;
         this.UploadTime = entity.UploadTime;
         this.AUserID = entity.AUserID;
         this.ArticleTitle = entity.ArticleTitle;
 }
 /// <summary>
 /// 创建新的 Article 对象。
 /// </summary>
 /// <param name="articleID">ArticleID 属性的初始值。</param>
 /// <param name="articleContent">ArticleContent 属性的初始值。</param>
 /// <param name="uploadTime">UploadTime 属性的初始值。</param>
 /// <param name="aUserID">AUserID 属性的初始值。</param>
 /// <param name="articleTitle">ArticleTitle 属性的初始值。</param>
 public static Article CreateArticle(global::System.Int32 articleID, global::System.String articleContent, global::System.DateTime uploadTime, global::System.Int32 aUserID, global::System.String articleTitle)
 {
     Article article = new Article();
     article.ArticleID = articleID;
     article.ArticleContent = articleContent;
     article.UploadTime = uploadTime;
     article.AUserID = aUserID;
     article.ArticleTitle = articleTitle;
     return article;
 }
 /// <summary>
 /// 用于向 Articles EntitySet 添加新对象的方法,已弃用。请考虑改用关联的 ObjectSet&lt;T&gt; 属性的 .Add 方法。
 /// </summary>
 public void AddToArticles(Article article)
 {
     base.AddObject("Articles", article);
 }