如何将动态gridview数据导出为ex​​cel

Question

我为报告创建了动态网格，并保留了一个选项作为导出到Excel。我用html Render-Control导出但我的问题是当我试图在excel中导出时，我得到了空白的Excel表格。任何人都可以帮助我。提前致谢

Response.Clear();
        string date_only_for_excel = DateTime.Now.Date.ToString("dd/MM/yyyy");
        string FileName = "REPORT_" + date_only_for_excel + ".xls";
        Response.AppendHeader("Content-Disposition", "attachment; filename=" + FileName + "");
        Response.Charset = "";
        Response.Cache.SetCacheability(HttpCacheability.NoCache);
        Response.ContentType = "application/vnd.xls";
        System.IO.StringWriter stringWrite = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);



        htmlWrite.Write("<table><tr><td colspan='24'></td></tr>");
        htmlWrite.Write("<table><tr><td colspan='24'></td></tr>");
        //htmlWrite.Write("<table><tr><td colspan='24' style='text-align:left;font-size:22;color:#f79646;margin-left:100px;'>BOQ REPORT</td></tr>");
        htmlWrite.Write("<table><tr><td colspan='24'></td></tr>");
        htmlWrite.Write("<table><tr><td colspan='24'></td></tr>");
        htmlWrite.Write("<table><tr><td colspan='24'></td></tr>");
        Div2.RenderControl(htmlWrite);
        Response.Write(stringWrite.ToString());
        Response.End();

我创建了动态网格并添加到此面板

 <asp:Panel ID="Export_Panel" runat="server">
                </asp:Panel>

Answer 1

使用gridView1.RenderControl(htmlWrite);代替

Div2.RenderControl(htmlWrite);

Answer 2

你可以试试这个：

protected void ExportToExcel(GridView gv)
        {
            Response.Clear();
            Response.Buffer = true;

        Response.AddHeader("content-disposition", "attachment;filename=YourFileName.xls");

        Response.Charset = "";
        Response.ContentType = "application/vnd.ms-excel";
        using (var sw = new StringWriter())
        {
            var hw = new HtmlTextWriter(sw);

            //To Export all pages
            gv.AllowPaging = false;
            gv.HeaderRow.BackColor = Color.White;
            foreach (TableCell cell in gv.HeaderRow.Cells)
            {
                cell.BackColor = gv.HeaderStyle.BackColor;
            }
            foreach (GridViewRow row in gv.Rows)
            {
                row.BackColor = Color.White;
                foreach (TableCell cell in row.Cells)
                {
                    if (row.RowIndex%2 == 0)
                    {
                        cell.BackColor = gv.AlternatingRowStyle.BackColor;
                    }
                    else
                    {
                        cell.BackColor = gv.RowStyle.BackColor;
                    }
                    cell.CssClass = "textmode";
                }
            }

            gv.RenderControl(hw);

            //style to format numbers to string
            var style = @"<style> .textmode { } </style>";
            Response.Write(style);
            Response.Output.Write(sw.ToString());
            Response.Flush();
            Response.End();
        }
    }