//修改菜 private void btnUpdatePro_Click(object sender, EventArgs e) { //修改传4 if (dgvProductInfo.SelectedRows.Count > 0) { //获取id,获取该id对象的数据 string strId = dgvProductInfo.SelectedRows[0].Cells[0].Value.ToString(); int id = Convert.ToInt32(strId); ProductInfoBLL bll = new ProductInfoBLL(); ProductInfo pro = bll.GetProductByProId(id); pro.ProId = id; fea.Obj = pro;//传对象 //传对象 ShowFrmChangeProduct(4); } else { MessageBox.Show("选中行"); } }