/*初始化当前员工的销售商品购物车*/
    protected void InitGoodCartInfo()
    {
        string employeeNo = Session["employeeNo"].ToString();
        /*查询该员工的商品销售购物车并绑定到gridview控件*/
        DataSet goodCartInfoDs = GoodCartLogic.QueryGoodCartInfo(employeeNo);

        GridView1.DataSource = goodCartInfoDs;
        GridView1.DataBind();
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            /*判断员工(收银员)是否已经登陆了系统*/
            if (Session["employeeFlag"] == null)
            {
                Response.Write("<script>top.location.href='../login.aspx';</script>");
                return;
            }
            /*生成小票号:员工编号+年+月+日+时+分+秒 */
            string sellNo = Session["employeeNo"].ToString() + DateTime.Now.Year;
            if (DateTime.Now.Month < 10)
            {
                sellNo += "0" + DateTime.Now.Month;
            }
            else
            {
                sellNo += DateTime.Now.Month;
            }
            if (DateTime.Now.Day < 10)
            {
                sellNo += "0" + DateTime.Now.Day;
            }
            else
            {
                sellNo += DateTime.Now.Day;
            }
            if (DateTime.Now.Hour < 10)
            {
                sellNo += "0" + DateTime.Now.Hour;
            }
            else
            {
                sellNo += DateTime.Now.Hour;
            }
            if (DateTime.Now.Minute < 10)
            {
                sellNo += "0" + DateTime.Now.Minute;
            }
            else
            {
                sellNo += DateTime.Now.Minute;
            }
            if (DateTime.Now.Second < 10)
            {
                sellNo += "0" + DateTime.Now.Second;
            }
            else
            {
                sellNo += DateTime.Now.Second;
            }

            this.SellNo.Text = sellNo;
            /*根据员工编号查询购物车并显示购物清单*/
            string employeeNo = Session["employeeNo"].ToString();
            /*查询该员工的商品销售购物车并绑定到gridview控件*/
            DataSet goodCartInfoDs = GoodCartLogic.QueryGoodCartInfo(employeeNo);
            GridView1.DataSource = goodCartInfoDs;
            GridView1.DataBind();
            /*得到该次销售的总的商品数目并显示*/
            this.TotalGoodCount.Text = GoodCartLogic.GetTotalGoodCountInCart(Session["employeeNo"].ToString()).ToString();
            /*得到该次销售的总的销售金额*/
            this.TotalPrice.Text      = GoodCartLogic.GetTotalPriceInCart(Session["employeeNo"].ToString()).ToString();
            this.ShouldGiveMoney.Text = GoodCartLogic.GetTotalPriceInCart(Session["employeeNo"].ToString()).ToString();
        }
    }