[转]对DataTable进行求和、平均等数学运算

转自：浪剑

private void dgMain_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

<ASP:DATAGRID ID="dgMain" RUNAT="server" AUTOGENERATECOLUMNS="False" CSSCLASS="FixTable" WIDTH="545"
    SHOWFOOTER="True">