当你在代码中使用Response.Redirect(); 或者Response.Write();难免会遇到Sys.WebForms.PageRequestManagerParserErrorException:的问题，这次遇到的问题错误提示：
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.Details: Error parsing near ‘<script type=‘text/j‘.
后台向前台注册脚本错误。
解决方法：
直接在web.config中添加
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
</httpModules>
成功解决！
Ajax方法执行跳转或者加载操作系统报出这样错误Sys.WebForms.PageRequestManagerParserErrorException:如何让解决
原文：http://www.cnblogs.com/loyung/p/3998022.html