public static void ExportExcel(System.Data.DataTable dt, string filetype, string Title)
{
if (filetype == "ms-excel" && dt.Rows.Count>0)
{
HttpContext.Current.Response.Clear();
string title = Title;
HttpContext.Current.Response.Write("<html xmlns:x=\"urn:schemas-microsoft-com:office:excel\"><head><meta http-equiv=Content-Type content=\"text/html; charset=utf-8\">");
// HttpContext.Current.Response.Write("<head>");
HttpContext.Current.Response.Write("<!--[if gte mso 9]><xml>");
HttpContext.Current.Response.Write("<x:ExcelWorkbook>");
HttpContext.Current.Response.Write("<x:ExcelWorksheets>");
HttpContext.Current.Response.Write("<x:ExcelWorksheet>");
HttpContext.Current.Response.Write("<x:Name>sheet1</x:Name>");
HttpContext.Current.Response.Write("<x:WorksheetOptions>");
HttpContext.Current.Response.Write("<x:Print>");
HttpContext.Current.Response.Write("<x:ValidPrinterInfo/>");
HttpContext.Current.Response.Write("</x:Print>");
HttpContext.Current.Response.Write("</x:WorksheetOptions>");
HttpContext.Current.Response.Write("</x:ExcelWorksheet>");
HttpContext.Current.Response.Write("</x:ExcelWorksheets>");
HttpContext.Current.Response.Write("</x:ExcelWorkbook>");
HttpContext.Current.Response.Write("</xml>");
HttpContext.Current.Response.Write("<![endif]--> ");
HttpContext.Current.Response.Write("</head>");
HttpContext.Current.Response.Write("<body>");
//导出表格网格线
HttpContext.Current.Response.Write("<font style=\"color:black;font-weight:bold; font-size:12pt\">" + title + "</font>"); //设置标题
HttpContext.Current.Response.Charset = "UTF-8";
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(title, System.Text.Encoding.UTF8) + ".xls");
HttpContext.Current.Response.ContentType = "application/ms-excel";
//page.EnableViewState = false;
System.IO.StringWriter tw = new System.IO.StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
DataGrid dg1 = new DataGrid();
dg1.HeaderStyle.Font.Bold = true;
dg1.DataSource = dt;
dg1.DataBind();
dg1.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.Write("</body>");
HttpContext.Current.Response.Write("</html>");
HttpContext.Current.Response.End();
}
}