public void setToExcel() { // Response.Clear(); // Response.Buffer= true; // Response.Charset="utf-8";　　 if (eformsn.Text=="") { DataGrid1.Visible=false; Label1.Text="要汇入EXCEL，请先输入申请单号!"; Label1.Visible=true; } else { dl.DataSource=DB("query", "select * from msi_eol_list_line where eformsn="+eformsn.Text+" order by eformsn").Tables[0].DefaultView; dl.DataBind(); //下面这行很重要，attachment 参数表示作为附件下载，您可以改成online在线打开 //filename=FileFlow.xls 指定输出文件的名称，注意其扩展名和指定文件类型相符，可以为：.doc .xls .txt .htm　　 Response.AppendHeader("Content-Disposition","attachment;filename=EOL_"+eformsn.Text+".xls"); Response.ContentEncoding=System.Text.Encoding.GetEncoding("utf-8");　 //Response.ContentType指定文件类型 可以为application/ms-excel,application/ms-word ,application/ms-txt,application/ms-html或其他浏览器可直接支持文档　 Response.ContentType = "application/ms-excel"; dl.EnableViewState = false;　 System.IO.StringWriter oStringWriter = new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter); //将目标数据绑定到输入流输出　　 //this 表示输出本页，你也可以绑定datagrid,或其他支持obj.RenderControl()属性的控件　　 dl.RenderControl(oHtmlTextWriter); //this.DataBind.RenderControl(oHtmlTextWriter); Response.Write(oStringWriter.ToString()); Response.End(); } }