如何防止将某些html导出到Excel文件时缺少css

本文关键字：文件 Excel css 何防止 html | 更新日期: 2023-09-27 18:36:22

我使用以下代码成功地将 html 表导出到 excel 文件

    public void exportGridToExcel(Control ctl)
    {
        string attachment = "attachment; filename=etrack_excel_export.xls";
        HttpContext.Current.Response.ClearContent();
        HttpContext.Current.Response.AddHeader("content-disposition", attachment);
        HttpContext.Current.Response.ContentType = "application/ms-excel";
        StringWriter stw = new StringWriter();
        HtmlTextWriter htextw = new HtmlTextWriter(stw);
        ctl.RenderControl(htextw);
        HttpContext.Current.Response.Write(stw.ToString());
        HttpContext.Current.Response.End();
    }

问题是导出后我应用于表格的所有css在excel文件中都丢失了，如何防止css丢失？

如何防止将某些html导出到Excel文件时缺少css

我终于得到了该怎么做！我与任何有相同问题的人分享：

        string attachment = "attachment; filename=etrack_excel_export.xls";
        HttpContext.Current.Response.ClearContent();
        HttpContext.Current.Response.AddHeader("content-disposition", attachment);
        HttpContext.Current.Response.ContentType = "application/ms-excel";
        StringWriter stw = new StringWriter();
        HtmlTextWriter htextw = new HtmlTextWriter(stw);
        ctl.RenderControl(htextw);
        HttpContext.Current.Response.Write(stw.ToString());
        FileInfo fi = new FileInfo(Server.MapPath("../Content/Styles/StyleSheet.css"));
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        StreamReader sr = fi.OpenText();
        while (sr.Peek() >= 0)
        {
            sb.Append(sr.ReadLine());
        }
        sr.Close();
        Response.Write("<html><head><style type='text/css'>" + sb.ToString() + "</style></head>" + stw.ToString() + "</html>");
        stw = null;
        htextw = null;
        Response.Flush();
        Response.End();
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