protected void PopulateControls()
    {
        DataTable dt = ItemAccess.GetMonthList(today, userId);

        List.DataSource = dt;
        List.DataBind();

        double zhichuPrice = 0;
        double shouruPrice = 0;
        double jiePrice    = 0;
        double huanPrice   = 0;

        foreach (DataRow dr in dt.Rows)
        {
            zhichuPrice += Double.Parse(dr["ZhiChuPrice"].ToString());
            shouruPrice += Double.Parse(dr["ShouRuPrice"].ToString());
            jiePrice    -= Double.Parse(dr["JiePrice"].ToString());
            huanPrice   -= Double.Parse(dr["HuanPrice"].ToString());
        }

        this.Label2.Text = zhichuPrice.ToString("0.0##");
        this.Label3.Text = shouruPrice.ToString("0.0##");
        this.Label4.Text = jiePrice.ToString("0.##");
        this.Label5.Text = huanPrice.ToString("0.##");
    }