asp.net 导出GridView、其它控件到Excel（防止中文乱码）

/// <summary>
/// 导出到EXCEL
/// </summary>
/// <param name="ctl"></param>
/// <param name="FileName"></param>
public void ToExcel(System.Web.UI.Control ctl, string FileName)
{
HttpContext.Current.Response.Charset = "GB2312"; // 或UTF-7 以防乱码
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
//HttpContext.Current.Response.ContentType = "application/octet-stream";
HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=GB2312\">");//出现中文乱码加这句
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(FileName)) + ".xls");
ctl.Page.EnableViewState = false;
System.IO.StringWriter tw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);
ctl.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
ctl.Page.EnableViewState = false;
} 【文章转自bgp服务器 http://www.558idc.com/yz.html提供，感恩】