Onreadystatechange callback behaviour for XMLHttpRequest

Posted by keshav.veerapaneni on Stack Overflow See other posts from Stack Overflow or by keshav.veerapaneni
Published on 2010-05-31T11:56:12Z Indexed on 2010/05/31 12:03 UTC
Read the original article Hit count: 334

Filed under:

AJAX

|

xmlhttprequest

|

onreadystatechange

Hello Colleagues,

If XMLHttpRequest is used with asynchronous mode, then are the onreadystatechange callbacks for 0,1,2 states called in UI thread only or in the background thread?

And is it possible that this behaviour could be different in different browsers?

Best Regards, Keshav

© Stack Overflow or respective owner

Related posts about AJAX

Ajax call from a form rendered as Ajax response (jQuery + Grails: chaining ajax requests)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I was expecting the below scenario common, but couldn't find much help online. I have a form loaded through Ajax (say, create entity form). It is loaded through a button click (load) event $("#bt-create").click(function(){ $ ('#pid').load('/controller/vehicleModel/create3'); … >>> More
Ajax Control Toolkit Now Supports jQuery

as seen on Stephen Walter - Search for 'Stephen Walter'
I’m excited to announce the September 2013 release of the Ajax Control Toolkit, which now supports building new Ajax Control Toolkit controls with jQuery. You can download the latest release of the Ajax Control Toolkit from http://AjaxControlToolkit.CodePlex.com or you can install the Ajax Control… >>> More
The Microsoft Ajax Library and Visual Studio Beta 2

as seen on Stephen Walter - Search for 'Stephen Walter'
Visual Studio 2010 Beta 2 was released this week and one of the first things that I hope you notice is that it no longer contains the latest version of ASP.NET AJAX. What happened? Where did AJAX go? Just like Sting and The Police, just like Phil Collins and Genesis, just like Greg Page and the Wiggles… >>> More
Video Aulas gratuitas de ASP.NET AJAX

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Olá pessoal, A Microsoft publicou 14 vídeos que cedi a eles a respeito do ASP.NET AJAX. Todos os vídeos são gratuitos, e caso você ainda use o AJAX estas lições podem ajudá-lo bastante. Tenha um excelente estudo. Instalação do AJAX Control Tookit ASP.NET AJAX: Controle calendário ASP.NET… >>> More
July 2013 Release of the Ajax Control Toolkit

as seen on Stephen Walter - Search for 'Stephen Walter'
I’m super excited to announce the July 2013 release of the Ajax Control Toolkit. You can download the new version of the Ajax Control Toolkit from CodePlex (http://ajaxControlToolkit.CodePlex.com) or install the Ajax Control Toolkit from NuGet: With this release, we have completely rewritten the… >>> More

Related posts about xmlhttprequest

XMLhttpRequest > PHP > XMLhttpRequest

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi guys, I have another question. XMLhttpRequests haunt me. Everything is now in the database but I need this data to update my page on firt page load or reload. The XHR is triggered in JavaScript file which triggers PHP-Script. PHP-Script access MySQL database. But how do I get the fetched records… >>> More
XMLHttpRequest in a loaded XMLHttpRequest

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello I'm using javascript to load data in a div trough XMLHttpRequest now i'm wondering if it's possible to make another XMLHttpRequest in that loaded div so an new onclick in my result Greetings >>> More
msxml XMLHTTPRequest and timeout

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, what determins the timeout value for XMLHTTPRequest (msxml version) send method? I'm calling it from MS Sql server and the server profiler shows me 'completed' after 30 seconds, the same happens when calling it through client programm calling stored proc. I set the client connection timeout to… >>> More
Cookies not present after using XMLHttpRequest

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to make a bookmarklet to download videos off of YouTube, but I've come across a little problem. To detect the highest quality video available, I use a sort of brute force method, in which I make requests using the XMLHttpRequest object until a 404 isn't returned (I can't do it until a… >>> More
How to check if XMLHttpRequest's send() supports File

as seen on Stack Overflow - Search for 'Stack Overflow'
Safari's XMLHttpRequest's send() method supports a File argument. Firefox does not (yet). How can I check if this is supported? In Firefox, it will just behave as if an empty string was passed. I'm trying to avoid doing browser version detection. >>> More