生成excel文件.txt

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public void ToExcel(System.Web.UI.Control ctl,string FileName)
		{
			HttpContext.Current.Response.Charset ="UTF-8";
			HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;
			HttpContext.Current.Response.ContentType ="application/ms-excel";
			HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename="+""+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();
		}