datalist导出excel

 void ExportExcel( System.Web.UI.WebControls.DataList dl, string strFileName)
        {
           
            strFileName = System.Web.HttpUtility.UrlEncode(strFileName, System.Text.Encoding.UTF8);


         
            System.Web.HttpContext.Current.Response.Clear();
            System.Web.HttpContext.Current.Response.Buffer = true;
            System.Web.HttpContext.Current.Response.Charset = "gb2312";
            System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "online; filename=" + strFileName + ".xls");
            System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
            System.Web.HttpContext.Current.Response.ContentType = "application/ms-excel";
         　this.EnableViewState = false; 
            System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("zh-CN", true);
            System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
            System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);

            dl.RenderControl(oHtmlTextWriter);
          
            
            System.Web.HttpContext.Current.Response.Write(oStringWriter.ToString().Replace("<td", "<td STYLE='MSO-NUMBER-FORMAT:\\@'"));
            System.Web.HttpContext.Current.Response.Buffer = false;
            System.Web.HttpContext.Current.Response.End();
        }

 

//如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内 
    public override void VerifyRenderingInServerForm(Control control)
    {
    }

 

<%@ Page Language="C#" EnableEventValidation = "false" AutoEventWireup="true"

 CodeFile="ExportGridView.aspx.cs" Inherits="ExportGridView" %>