public void PageBind() { _newsType = NewsInfoCRUD.GetNewsType(); this.DropNewsList.Items.Clear(); foreach (var item in _newsType) { this.DropNewsList.Items.Add(item.typeName); this.DropNewsList.DataValueField = item.typeId.ToString(); this.DropNewsList.DataTextField = item.typeName; this.DropNewsList.SelectedIndex = 0; this.DropNewsList.DataBind(); } if (Request["newsId"] != null) { int newsId = int.Parse(Request["newsId"]); _news = NewsInfoCRUD.GetNewsSingleInfo(newsId); TxtTitle.Text = null; TxtTime.Text = null; TxtContent.Text = null; foreach (var item in _news) { TxtTitle.Text = item.newsTitle; TxtTime.Text = item.newsTime.ToString(); TxtContent.Text = item.newsContent; } } }