GridView后台动态添加标题

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 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</br>总分:<span style='color:red'>" + zpzf + "</span>";
                tcHeader[4].Text = "领导评价分数</br>总分:<span style='color:red'>" + (decimal.Parse(sjzf) - decimal.Parse(zpzf)).ToString() + "</span>";
            }
        }