ajax

jQuery addClass() not running before jQuery.ajax()

I'm trying to have a button that onclick will apply a class loading (sets cursor to "wait") to the body, before making a series of ajax requests. Code is: $('#addSelected').click(function(){ $('body').addClass('loading'); var products = $(':checkbox[id^=add_]:checked'); products.each(function(){ var prodID = $(thi...

De-normalization alternative to specific MYSQL problem?

I am facing quite a specific optimization problem. I currently have 4 normalized tables of data. Every second, possibly thousands of users will pull down up-to-date info from these tables using AJAX. The thing is that I can predict relatively easily which subset of data they need... The most recent 100 or so entries in those 4 normali...

Passing jQuery object and WebMethod return value to an OnSuccess function

I am calling a WebMethod from this code: if($(this).attr("checked")) { .. MyWebMethod(variable1, variable2, onSuccessFunction); } The MyWebMethod returns an integer, and I want to set $(this).attr("id") of the jQuery object above to the returned integer. Basically, I'm trying to do the equivalent of an MVC Ajax.ActionLink...Ajax...

How can I protect this code from SQL Injection? A bit confused.

I've read various sources but I'm unsure how to implement them into my code. I was wondering if somebody could give me a quick hand with it? Once I've been shown how to do it once in my code I'll be able to pick it up I think! This is from an AJAX autocomplete I found on the net, although I saw something to do with it being vulnerable to...

Allow repeater to be arranged using drag-drop

Hey all, I have a repeater that's bound to a SQL Data Source (using ASP.NET). Are there any JQuery plugins/efficient way of converting my repeater into something that can be sorted via drag and drop? i.e. users can rearrange the order of the data, which updates the database? Thanks ...

jQuery ajax doesn't work on url without www

The jQuery ajax script below doesn't work on my site if url is without www. I checked Firebug and it doesn't send the ajax call. $.ajax( { type: "POST", url: "http://www.mysite.com/beta/products.php", data: "page_type=index&sort=relevancerank&CartId=<?php echo $CartId;?>&HMAC=<?php echo $HMAC;?>", suc...

IF statement + Jquery popup?

How would i go about having my site know lets say "IE User Visit's" and my site goes oh there on IE pop up lightbox or something. needs to support html. but say there on Mozilla or safari base browsers it just goes it because radius is supported by them ...

How do ansynchronous methods work

Hello, I'm wondering if anyone can help me understand some asynchronous javascript concepts... Say I make an asynch ajax call like so: xmlhttp=new XMLHttpRequest(); xmlhttp.onreadystatechange= myFoo; xmlhttp.open("GET",url,true); Here is my callback function: function myFoo() { if (xmlhttp.readyState==4) { if (xmlhttp.stat...

How to notify client about updated UpdatePanel content on server side

I have a problem with UpdatePanel.Update() which works initially but then stops. I have tumbled with this problem for some time and some background is needed so please read ahead. I have an ASP.net application in which I have a subpage that display computed information in graphs. Each graph is embedded in an UpdatePanel. The graph i...

Easiest way to retrieve cross-browser XmlHttpRequest

What is the easiest and safest way to retrieve XmlHttpRequest object that works across all browsers? Without any extra libraries. Is there a code snippet you use often? P.S. I know there are tons of examples on the net, but this is precisely the reason I am asking: there are too many different examples, and I just want something simple ...

General Web Programming/designing Question: ?

hi, I have been in web programming for 2 years (Self taught - a biology researcher by profession). I designed a small wiki with needed functionalities and a scientific RTE - ofcourse lot is expected. I used mootools framework and AJAX extensively. I was always curious when ever I saw the query strings passed from URL. Long encrypted qu...

is there any reference you consider a basic ajax reference to create a popup menu ?

i would like know some reference. I know i can googling it. but prefer from your point of view and your understanding what is the basic one...thanks ;D ...

Stream data with Node.js

I want to know if it is possible to stream data from the server to the client with Node.js. From what I can understand all over the internet is that this has to be possible, yet I fail to find a correct example or solution. What I want is a single http post to node.js with AJAX. Than leave the connection open and continuously stream dat...

ajax and servlet

Hi everyone I am using ajax to send a value to a servlet with that parameter value I must display a table HTML. from my JSP when sending with following: xhr.open("POST","ServletImputOPC",true); xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); var unit =document.getElementById('unit').value; ...

Ajax cross domain call

Hi Folks, I know about ajax cross-domain policy. So I can't just call "http://www.google.com" over a ajax HTTP request and display the results somewhere on my site. I tried it with dataType "jsonp", that actually would work, but I get a syntax error (obviously because the received data is not json formated) Is there any other possibli...

AJAX - how to make autocomplete/autosuggestion and show results outside form, in table

hello im trying to make a simple page with search engine. i read, that if i want to implement autocomplete/autosuggest with form, i have to use ajax. thats ok for me. there are a lot solutions on the intenret, but unfortunetly all of them is the same script :/ and thats fine for me :) but i want to go further. i want to show autosuggest...

Update panel controls not updating

I have an aspx page that contains an update panel. Within this there are several user controls, each with a label to display an error. Within these controls are more child controls where exceptions are caught and an ExceptionEncountered event is raised to deal with them. The parent control (with the error label) listens for the Except...

AJAX Web Application Design

I'm working on a personal project to build a small web app that is built using AJAX requests and talks to a RESTful API rather than traditional HTML pages and form submissions. Are there any online articles or tutorials or any books that people could recommend that cover design patterns for this kind of thing? ...

Apply jQuery UI widgets to ajax loaded elements

I want to activate the jQueryUI button widget on a given selector, lets say '.button'. Whats the best way to automatically activate the widget on any new '.button' elements inserted to the DOM after the initial page load via ajax. Previously, I used the livePlugin with code something like this: $('.button') .live(function(){ ...

Search functionality in a lightbox

Hi All, I have a page on which there is a link search. onclicking search i open a LIGHTBOX where i get a textfield and Search button. Now i want when i enter keyword in textfield and enter on submit button a result should be shown in a lighbox only. is it possible w/o ajax or i have to use ajax form only. just curious why we used get...