问题：
gridview绑定数据，模板列定义删除功能，当删除完最后一行数据时，gridview始终显示最后一个，无论删除多少次都是一样，望高手解释，谢谢。
代码：
 public List<int> list= new List<int>();
        protected void Page_Load(object sender, EventArgs e)
        {

            if (!IsPostBack)
            {

                    bind();

            }

        }

        private void bind()
        {
            if (null != Session["listid"])
            {
                list = (List<int>)Session["listid"];
                if (list.Count > 0)
                {
                    List<ProductInfo> listinfo = new List<ProductInfo>();
                    foreach (int item in list)
                    {
                        ProductInfo pro = ProductBLL.GetProductById(item);
                        listinfo.Add(pro);
                    }
                    this.GridView1.DataSource = listinfo;
                    this.GridView1.DataBind();
               
                }
                else
                {
                    this.la1.Text = "您的收藏夹中无任何车型!";
                    this.div2.Visible = true;
                    this.div3.Visible = false;
                    this.divGrid.Visible = false;
                }



            }


        }

        protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if ( == "Delete")
            {
                int id = int.Parse(());
                list = (List<int>)Session["listid"];
                foreach (int item in list)
                {
                    if (id == item)
                    {
                        list.Remove(item);
                        Session["listid"] = list;
                        break;
                    }
                }
                bind();
            }
        }