把Web Control导出为Excel或Word

　/// /// 将Web控件导出/// /// 控件实例/// 类型:Excel或wordpublic void ExpertControl(System.Web.UI.Control source, DocumentType type){     //设置Http的头信息,编码格式     if (type == DocumentType.Excel)     {         //Excel         Response.AppendHeader("Content-Disposition","attachment;filename=result.xls");         Response.ContentType = "application/ms-excel";      }     else if (type == DocumentType.Word)     {         //Word         Response.AppendHeader("Content-Disposition","attachment;filename=result.doc");         Response.ContentType = "application/ms-word";     }     Response.Charset = "UTF-8";        Response.ContentEncoding = System.Text.Encoding.UTF8;      //关闭控件的视图状态     source.Page.EnableViewState =false;         //初始化HTMLWriter     System.IO.StringWriter writer = new System.IO.StringWriter() ;     System.Web.UI.HtmlTextWriter htmlWriter = new System.Web.UI.HtmlTextWriter(writer);     source.RenderControl(htmlWriter);      //输出     Response.Write(writer.ToString());     Response.End();} //文档类型public enum DocumentType{     Word,     Excel} 调用方法：ExpertControl(this, DocumentType.Word);这是将整个页面导出为Word