C# 基类大全（源码）

C# 基类大全（源码） /// </summary> /// 导出Excel文件，自动返回可下载的文件流 /// </summary> public static void DataTable1Excel(System.Data.DataTable dtData) { GridView gvExport = null; HttpContext curContext = HttpContext.Current; StringWriter strWriter = null; HtmlTextWriter htmlWriter = null; if (dtData != null) { curContext.Response.ContentType = "application/vnd.ms-excel"; curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); curContext.Response.Charset = "utf-8"; strWriter = new StringWriter(); htmlWriter = new HtmlTextWriter(strWriter); gvExport = new GridView(); gvExport.DataSource = dtData.DefaultView; gvExport.AllowPaging = false; gvExport.DataBind(); gvExport.RenderControl(htmlWriter); curContext.Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html;charset=gb2312\"/>" + strWriter.ToString()); curContext.Response.End(); } }