Excel文件下载功能

HtmlTextWriter：能够帮助我们快速生成html语句。

下载功能实现代码

   protected void Button1_Click(object sender, EventArgs e)
        {
            int currentPage = AspNetPager1.CurrentPageIndex;
            int pageSize = AspNetPager1.PageSize;
            int recordCount;

            StudentDAL dal = new StudentDAL();
            DataSet ds = dal.GetPage(currentPage, pageSize, out recordCount);
            Repeater1.DataSource = ds;
            Repeater1.DataBind();
            ToExcel(Repeater1, "FinanceInContractor.xls");
        }

        #region 导出为Excel
        private void ToExcel(Control ctl, string FileName)
        {
            HttpContext.Current.Response.ContentType = "application/ms-excel"; HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + "" + FileName);
            ctl.Page.EnableViewState = false; System.IO.StringWriter tw = new System.IO.StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(tw);
            ctl.RenderControl(hw);
            HttpContext.Current.Response.Write(tw.ToString());
            HttpContext.Current.Response.End();
        }
        #endregion