Repeater 統計列

decimal sum = 0;
        protected void RepMain_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                string num = DataBinder.Eval(e.Item.DataItem, "DXFY").ToString().Trim();
                if (!num.Equals(""))
                    sum += Convert.ToDecimal(num);
            }
            this.lblSum.Text = sum.ToString() + "元";
        }