ASP.NET 导出到 Excel

try
    {
     Response.Clear();
　　   Response.Buffer= true;
　　   Response.Charset="gb2312";　
     Response.AppendHeader("Content-Disposition","attachment;filename=FileFlow.xls");
　　        Response.ContentEncoding=System.Text.Encoding.GetEncoding("gb2312");　
     Response.ContentType = "application/ms-Excel";
　　        this.EnableViewState = false;　　
     System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
　　        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);　
     this.dtgmark.RenderControl(oHtmlTextWriter); 　　
　　        //this 表示输出本页，你也可以绑定datagrid,或其他支持obj.RenderControl()属性的控件
　　        Response.Write(oStringWriter.ToString());
　　        Response.End();　
    }
    catch
    {}