private void ToolStripMenuItem_DelArticle_Click(object sender, EventArgs e) { if (lv_ArticleTitleList.SelectedIndices.Count>0) { using (ArticleDAL dal = new ArticleDAL ()) { Article article = ArticleList.Where(a => a.ID == Guid.Parse(lv_ArticleTitleList.SelectedItems[0].Name)).First(); if (dal.DelArticle(article)) { Bind(); MessageBox.Show("删除成功"); } else { MessageBox.Show("删除失败"); } } } }