从GridView导出到Excel 加行

private void toexcel(string title)
    {
        try
        {
            Encoding encContent = Encoding.GetEncoding("utf-8");
            int count = GridView1.Columns.Count;
            Response.Clear();
            Response.ClearContent();
            Response.ClearHeaders();
            Response.Buffer = true;
            Response.Charset = encContent.WebName;
            Response.ContentEncoding = encContent;
            Response.ContentType = "application/vnd.ms-excel";
            Response.Write(string.Format("<meta http-equiv=Content-Type content=text/html;charset={0}>", encContent.WebName));
            string rename = HttpUtility.UrlEncode(title, Encoding.UTF8);
            Response.AppendHeader("content-disposition", string.Format("attachment;filename={0}.xls", rename));
            StringBuilder titleName = new StringBuilder();
            string colspanCount = string.Format("<table><tr><td colspan=\"{0}\"", count);
            titleName.Append(colspanCount);
            titleName.Append("style=\"font-family:宋体;font-size:12.0pt;font-weight:700;");
            titleName.Append("text-align:center;vertical-align:middle;\">");
            titleName.Append(string.Format("{0}</td></tr></table>", title));
            EnableViewState = false;
            StringWriter sw = new StringWriter();
            HtmlTextWriter htw = new HtmlTextWriter(sw);
            this.GridView1.RenderControl(htw);
            Response.Write(AddExcelHead(title));
            Response.Write(titleName.ToString());
            Response.Write(sw.ToString());
            Response.Write(AddExcelbottom());
            sw.Close();
            Response.End();
        }
        catch
        {

        }
    }
   
    protected void btn_toexcel_Click(object sender, EventArgs e)
    {
        string orderid = "";
        if (Request.Params["id"] != null)
        {
            orderid = Request.Params["id"].ToString();
        }
        toexcel("订单" + orderid + "详细");
    }
    public static string AddExcelHead(string title)
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("<html xmlns:x=\"urn:schemas-microsoft-com:office:excel\">");
        sb.Append(" <head>");
        sb.Append(" <!--[if gte mso 9]><xml>");
        sb.Append("<x:ExcelWorkbook>");
        sb.Append("<x:ExcelWorksheets>");
        sb.Append("<x:ExcelWorksheet>");
        sb.Append(string.Format("<x:Name>{0}</x:Name>", title));
        sb.Append("<x:WorksheetOptions>");
        sb.Append("<x:Print>");
        sb.Append("<x:ValidPrinterInfo />");
        sb.Append(" </x:Print>");
        sb.Append("</x:WorksheetOptions>");
        sb.Append("</x:ExcelWorksheet>");
        sb.Append("</x:ExcelWorksheets>");
        sb.Append("</x:ExcelWorkbook>");
        sb.Append("</xml>");
        sb.Append("<![endif]-->");
        sb.Append(" </head>");
        sb.Append("<body>");
        return sb.ToString();
    }
    public static string AddExcelbottom()
    {
        StringBuilder sb = new StringBuilder();
        sb.Append("</body>");
        sb.Append("</html>");
        return sb.ToString();
    }
    public override void VerifyRenderingInServerForm(Control control)
    {

    }

原文地址:https://www.cnblogs.com/94cool/p/1795942.html