//删除商品类别 private void btnDeleteCategory_Click(object sender, EventArgs e) { if (dgvCategoryInfo.SelectedRows.Count > 0) { CategoryInfoBLL bll = new CategoryInfoBLL(); int id = Convert.ToInt32(dgvCategoryInfo.SelectedRows[0].Cells[0].Value); if (bll.DeleteCategoryInfoByCatId(id)) { MessageBox.Show("删除成功"); LoadCategoryInfoByDelFlag(0); } else { MessageBox.Show("删除失败"); } } else { MessageBox.Show("请选择要处理的行"); } }