private void btnDelete_Click(object sender, EventArgs e) { var client = new CategoryBaseServiceReference.BreadShopOf_CategoryBaseClient(); var r = client.Delete(Convert.ToInt32(txtCategoryId.Text)); if (r) { MessageBox.Show("삭제되었습니다."); DisplayData(); } else { MessageBox.Show("삭제되지 않았습니다."); } }