ASP.NET购物车代码程序

                int h;
                DataTable nowTable3 = new DataTable("nowCartTable3");
                nowTable3 = (DataTable)Session["myCartTable"];
                if (nowTable3.Rows.Count > 0)                               //返回购物车中是否有货物
                {
                    int total = 0; ;
                    for (h = 0; h <= this.ShoppingCartDlt.Rows.Count-1; h++)
                    {
                        total += Convert.ToInt32((Int32.Parse(nowTable3.Rows[h][4].ToString()) * Double.Parse(nowTable3.Rows[h][2].ToString())));

                    }
                    ((Label)ShoppingCartDlt.FooterRow.FindControl("total")).Text = Convert.ToString(total);
                    OrderFrom.Money = ((Label)ShoppingCartDlt.FooterRow.FindControl("total")).Text;
                }

            }

        }
        public void Update()
        {

            int i;
            int j;

            ArrayList deleteItem = new ArrayList(10);

            j = 0;

    DataTable nowTable2 = new DataTable("nowCartTable2");
            nowTable2 = (DataTable)Session["myCartTable"];
            int total = 0;
            int ProductNum = 0;
            for (i = 0; i <= this.ShoppingCartDlt.Rows.Count-1; i++)
            {
                // _item = this.ShoppingCartDlt.Items[i];
               // _item = this.ShoppingCartDlt.Items[i];
                TextBox CountText = (TextBox)this.ShoppingCartDlt.Rows[i].FindControl("max");//Controls[1];//_item.FindControl("CountTb");
                CheckBox ProductIDCheck = (CheckBox)this.ShoppingCartDlt.Rows[i].FindControl("chkProductID");

                total +=Convert.ToInt32((Int32.Parse(nowTable2.Rows[i][4].ToString()) * Double.Parse(nowTable2.Rows[i][2].ToString())));
                ProductNum += Convert.ToInt32(Int32.Parse(nowTable2.Rows[i][2].ToString()));
                if (ProductIDCheck.Checked)
                {
                    nowTable2.Rows[i][5] = 1;//添加删除标记1
                    j = j + 1;
                }

            }
            ((Label)ShoppingCartDlt.FooterRow.FindControl("total")).Text = Convert.ToString(total);
            OrderFrom.Money = ((Label)ShoppingCartDlt.FooterRow.FindControl("total")).Text;
            OrderFrom.TotolNumber=ProductNum.ToString();
            string strExpr = "IsDeleted>0";
            DataRow[] foundRows = nowTable2.Select(strExpr);

    for (int m = 0; m < foundRows.Length; m++)
            {
                //Console.WriteLine(foundRows[i][0]);
                foundRows[m].Delete();
            }

            ShoppingCartDlt.DataSource = nowTable2.DefaultView;
            ShoppingCartDlt.DataBind();
            Session["myCartTable"] = nowTable2;
            Caculator();

        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            Response.Redirect("index.aspx");
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
           Update();
        }
        protected void Button5_Click(object sender, EventArgs e)
        {
            Update();
            Response.Redirect("checkout.aspx");
        }
    }

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【责编:Ken】