/// 
    /// 销售对账单余额为负时红色字体显示    /// 
    ///     ///     protected void grid_HtmlRowCreated(object sender, ASPxGridViewTableRowEventArgs e)    {        if (e.RowType != DevExpress.Web.ASPxGridView.GridViewRowType.Data) return;        string str = e.GetValue("BalanceAmount").ToString();        if (str.Contains("-"))        {            e.Row.Cells[13].Style.Add("Color", "Red");        }      }