GridView后台动态添加标题

 protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.Header)
            {
                string sjzf = db.DLookup("score", "DWPY_Paper", "isuser = '是'");
                string zpzf = db.DLookup("sum(fs)", "DWPY_Question", "paperid in(select id from DWPY_Paper where isuser = '是' ) and type = '自评'");
                TableCellCollection tcHeader = e.Row.Cells;
                tcHeader[3].Wrap = false;
                tcHeader[3].Text = "个人自评分数
总分:" + zpzf + "";
                tcHeader[4].Text = "领导评价分数
总分:" + (decimal.Parse(sjzf) - decimal.Parse(zpzf)).ToString() + "";
            }
        }