private void menuControl_ItemClicked(object sender, ToolStripItemClickedEventArgs e) { string currentEmail = gvAccount.CurrentRow.Cells["Email"].Value.ToString(); long id = arrAccounts.SingleOrDefault(a => a.Email.Equals(currentEmail)).id; switch (e.ClickedItem.ToString()) { case "Xem chi tiết": AccountDetailForm frm = new AccountDetailForm(id); frm.Show(); frm.FormClosed += frm_FormClosed; break; case "Xoá": DialogResult rs = MessageBox.Show("Chắc chắn xoá?", "Warning", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning); if (rs == System.Windows.Forms.DialogResult.OK) { accountSV.delete(id); threadInit.RunWorkerAsync(); } break; case "Đổi mật khẩu": new ChangePassword(id).Show(); break; } }