将GridView的内容写入Word或者Excel

       Response.Clear();        Response.Buffer  =   true ;        Response.Charset  =   " GB2312 " ;         // attachment改成online，成为在线打开         Response.AddHeader( " Content-Disposition " ,  " attachment;filename= "   +  System.DateTime.Today.ToShortDateString()  +   " .xls " );        Response.ContentEncoding  =  System.Text.Encoding.GetEncoding( " GB2312 " );        Response.ContentType  =   " application/ms-excel " ;        GridView1.EnableViewState  =   false ;        System.IO.StringWriter oStringWriter  =   new  System.IO.StringWriter();        System.Web.UI.HtmlTextWriter oHtmlTextWriter  =   new  System.Web.UI.HtmlTextWriter(oStringWriter);        GridView1.RenderControl(oHtmlTextWriter);        Response.Write(oStringWriter.ToString());        Response.End();

要存为word,文本,只要将相应的后缀后为.doc或.txt就可以了．．这段代码会在客户端弹出另存为

！注意 ：这个GridView不能保含分页，排序，模板，选定内容．总之就是存表格式的．否则会发生异常---->

只能在执行 Render() 的过程中调用 RegisterForEventValidation；