Global.asax 与 AJAX 控制工具包中断

Question

一切都工作正常。然后我添加了 Global.asax 并突然出现此错误：

线路：4723 错误：Sys.WebForms.PageRequestManagerParserErrorException：无法解析从服务器接收的消息。出现此错误的常见原因是通过调用 Response.Write()、响应筛选器、HttpModule 或启用服务器跟踪来修改响应。 详细信息：在 'eeCtrl_Data = null;| 附近解析时出错 线路

<%@ 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

Answer 1

尝试注释掉这一行，看看是否可以解决问题。

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

HTH。

Answer 2

这并不优雅，但它可以满足我的需求（谢天谢地，这是一个内部应用程序）。这是一个由两部分组成的解决方案。一种是由于 UpdatePanel 回发而发生的回发。另一个用于定期回发。

我不想关闭这个线程，因为我认为可以提出更好的解决方案。