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ASP.NET Ajax Error: Sys.WebForms.PageRequestManagerParserErrorException

由 左心房为你撑大大i 提交于 2019-11-27 21:56:35
My website has been giving me intermittent errors when trying to perform any Ajax activities. The message I get is 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 ' <!DOCTYPE html P'. So its obviously some sort of server timeout or the server's just returning back mangled garbage. This generally, unfortunately not always, happe splattne There is an

Sessions in Asynchronous design

由 南笙酒味 提交于 2019-11-27 14:46:47
We are building a AJAX enabled web application that makes multiple asynchronous requests to the server. Each of these server requests are long running server tasks with each returning back a JSON object to the html page. Each of these calls need read/write access to the Session object. But the ASP.NET locks the session object when multiple asynchronous tasks are in process, thus blocking the first asynchronous call. So these asynchronous calls never happen in parallel. PS: The asynchronous calls are PageMethod calls. Are Sessions are 'not' recommended in the first place when used along-side

Sessions in Asynchronous design

由 浪子不回头ぞ 提交于 2019-11-26 16:54:25
问题 We are building a AJAX enabled web application that makes multiple asynchronous requests to the server. Each of these server requests are long running server tasks with each returning back a JSON object to the html page. Each of these calls need read/write access to the Session object. But the ASP.NET locks the session object when multiple asynchronous tasks are in process, thus blocking the first asynchronous call. So these asynchronous calls never happen in parallel. PS: The asynchronous
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