Global.asax 打破了 AJAX 控制工具包答案

【问题标题】：Global.asax breaks with AJAX Control ToolkitGlobal.asax 打破了 AJAX 控制工具包
【发布时间】：2011-01-25 13:57:29
【问题描述】：

一切正常。然后我添加了Global.asax，突然出现这个错误：

线路：4723 错误：Sys.WebForms.PageRequestManagerParserErrorException：无法解析从服务器接收到的消息。此错误的常见原因是通过调用 Response.Write()、响应过滤器、HttpModules 或启用了服务器跟踪来修改响应。详细信息：在 'eeCtrl_Data = null;| 附近解析错误

<%@ Application Language="VB" %>

<script runat="server">

Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
    ' Code that runs on application startup
End Sub

Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
    ' Code that runs on application shutdown
End Sub

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
    ' Code that runs when an unhandled error occurs
End Sub



Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
    ' Code that runs when a new session is started
End Sub

Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
    ' Code that runs when a session ends. 
    ' Note: The Session_End event is raised only when the sessionstate mode
    ' is set to InProc in the Web.config file. If session mode is set to StateServer 
    ' or SQLServer, the event is not raised.
End Sub

Protected Sub Application_BeginRequest(ByVal sender As Object, ByVal e As System.EventArgs)
    HttpContext.Current.Items("renderStartTime") = DateTime.Now
End Sub


Protected Sub Application_EndRequest(ByVal sender As Object, ByVal e As System.EventArgs)
    Dim startTime As DateTime = CType(HttpContext.Current.Items("renderStartTime"), DateTime)
    Dim renderTime As TimeSpan = DateTime.Now - startTime
    HttpContext.Current.Response.Write("<!-- Render Time (in milliseconds): " & renderTime.TotalMilliseconds.ToString & " -->")
End Sub

【问题讨论】：

标签： asp.net asp.net-ajax ajaxcontroltoolkit global-asax

【解决方案1】：

尝试注释掉这一行，看看是否能解决问题。

HttpContext.Current.Response.Write("<!-- Render Time (in milliseconds): " & renderTime.TotalMilliseconds.ToString & " -->")

HTH。

【讨论】：

【解决方案2】：

这并不优雅，但可以满足我的需求（谢天谢地，这是一个内部应用程序）。这是一个两部分的解决方案。一种是由于 UpdatePanel 回发而发生的回发。另一个用于定期回发。

我宁愿不关闭这个帖子，因为我认为可以提出更好的解决方案。

【讨论】：