Response.Clear()
Response.Buffer = True
Response.Charset = "GB2312"
'下面这行很重要 attachment 参数表示作为附件下载，您可以改成 online在线打开
'filename=FileFlow.xls 指定输出文件的名称，注意其扩展名和指定文件类型相符，可以为：.doc .xls .txt .htm
Response.AppendHeader("Content-Disposition", "attachment;filename=FileFlow.xls")
Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312")
'Response.ContentType::application/ms-excel、application/ms-word、application/ms-txt、application/ms-html 或其他浏览器可直接支持文档
Response.ContentType = "application/ms-excel"
Me.EnableViewState = False
'定义一个输入流
Dim oStringWriter As System.IO.StringWriter = New System.IO.StringWriter()
Dim oHtmlTextWriter As System.Web.UI.HtmlTextWriter = New System.Web.UI.HtmlTextWriter(oStringWriter)
Me.Tab1.RenderControl(oHtmlTextWriter)
'this 表示输出本页，你也可以绑定datagrid,gridview或其他支持obj.RenderControl()属性的控件
Response.Write(oStringWriter.ToString())
Response.End()
End Sub
'重载VerifyRenderingInServerForm，否者会出现类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内。的错误
Public Overrides Sub VerifyRenderingInServerForm(ByVal control As Control)
End Sub