//Update Product
 private void btnUpdatePro_Click(object sender, EventArgs e)
 {
     if(dgvProductInfo.SelectedRows.Count>0)
     {
         int id = Convert.ToInt32(dgvProductInfo.SelectedRows[0].Cells[0].Value.ToString());
         ProductInfoBLL bll = new ProductInfoBLL();
         ProductInfo pro = bll.GetProductInfoById(id);
         if(pro!=null)
         {
             meaFcp.Obj = pro;
             InsertOrUpdate(4);
         }
     }
     else
     {
         MessageBox.Show("请选中Product");
     }
     
 }