private void DeleteFileHandler(object sender, EventArgs e) { if (((Form)sender).DialogResult != DialogResult.Yes) { return; } try { foreach (ListViewItem item in fileListView.SelectedItems) { string body = _currentUser.Usr_Name; body += "于"; body += DateTime.Now.ToString(); body += "删除了"; body += item.Text; body += "文件"; _helper.DeleteFile(_currentUser, (int)item.Tag); _currentUser.MailSend((int)item.Tag, body); } LoadFiles(); } catch (Exception ex) { MessageBox.Show("删除文件失败!" + ex.Message, "文档管理系统", MessageBoxButtons.OK, MessageBoxIcon.Error); } }