ajax

AJAX Functionality

In order to enable AJAX Functionality , which control is placed on the page..? ...

Ajax in javascript not working.

$(document).ready(function() { $('#content').html(''); $.ajax({ url:'data.json', dataType: "json", success: function(data) { $('#content').append('<p>'+data.rank+'</p>'); } });}); In this code (it works) data.json contains the JSON data in this format: { "user_id":"3190399", "user_name"...

Can I avoid having an UpdatePanel that kills viewstate?

I selection page that has a gridview that presents the user with a list of data items that they can click on to "drill into" - redirecting them to the data maintenance page. Because the list can get long, we have a series of check boxes and drop-down lists at the top that act as filters. We just implemented an UpdatePanel with an Updat...

Refactor to replace AjaxControlToolkit or RadAjaxManager

I have inherited a DotNetNuke codebase and have come across areas that have included both the AjaxControlToolkit and the Telerik RadAjaxManager. There are plenty of instances where one is preferred to the other but with only a slight bias towards Telerik in the code base as a whole. I am familiar with the MS Ajax Exentsions but haven't...

Dynamically change ajax toolkit ValidatorCalloutExtender

Hey everyone, I'm using the ajax toolkit's ValidatorCalloutExtender to display error messages on a textbox. The ValidatorCalloutExtender is extending on a RegularExpressionValidator that is validating the textbox. The problem I am having is that I need to dynamically change the ValidationExpression and ErrorMessage depending on what ...

Newbie to Newbie Ajax tips for ugly Invoice webpage

Some assorted pseudotips about "invoice oriented" master/detail web sites, Examples (but with small detail) and highlights: The demo at SimplyInvoices: the 5 blank items editable without a modal popup detail http://freelanceswitch.com/money/7-online-invoicing-apps-for-freelancers/ has some interesting web sites Questions: Large pr...

Best tools for AJAX

What are the best tools for AJAX development? I know of firebug for firefox, what other great tools are there for AJAX development? ...

Parallel asynchronous Ajax requests using jQuery

I'd like to update a page based upon the results of multiple ajax/json requests. Using jQuery, I can "chain" the callbacks, like this very simple stripped down example: $.getJSON("/values/1", function(data) { // data = {value: 1} var value_1 = data.value; $.getJSON("/values/2", function(data) { // data = {value: 42} var v...

Ajax Security Question: Supplying Available usernames dynamically

I am designing a simple registration form in ASP.net MVC 1.0 I want to allow the username to be validated while the user is typing (as per the related questions linked to below) This is all easy enough. But what are the security implications of such a feature? How do i avoid abuse from people scraping this to determine the list of val...

jquery click on anchor element forces scroll to top?

http://stackoverflow.com/questions/720970/jquery-hyperlinks-href-value[link text][1] I am running in to a problem using jquery and a click event attached to an anchor element. [1]: http://stackoverflow.com/questions/720970/jquery-hyperlinks-href-value "This" SO question seems to be a duplicate, and the accepted answer doesn't seem to...

How do I temporarily convert an ASP.NET Ajax form to not use partial page updates?

I need the ability to temporarily turn off the partial page update behavior for an ASP.NET Ajax / UpdatePanel based page. (The reason is to circumvent the issue where IE blocks "automatic file downloads" for downloads generated as a result of this postback, but I don't want to distract from my original question) I looked at the client ...

ASP.NET: jQuery AJAX 'data' param problem

I've been having problems with this code I had spent the last 3 hours digging around and trying to find an answer. As I wasn't successful, I will just post the code and ask which kind of parameters I should have on my web service to handle this request: var args = [{ key: 'myId', value: 'myValue' }, { key: 'myOtherId', value: 'myOtherVa...

How to neutralize injected remote Ajax content?

I'll be inserting content from remote sources into a web app. The sources should be limited/trusted, but there are still a couple of problems: The remote sources could 1) be hacked and inject bad things 2) overwrite objects in my global names space 3) I might eventually open it up for users to enter their own remote source. (It w...

Why does visual studio 2008 break my web page?

I have a aspx page that has a UpdatePanel and a asp timer. the timer tick is the trigger for the update panel. If add anything to the update panel (even a space!) Visual Studio automagically adds the following <Triggers> <System.Web.UI.AsyncPostBackTrigger ControlID="tm1" EventName="Tick"></System.Web.UI.AsyncPostBackTrigger> ...

jQuery: Creating a New DOM element and showing it

So as the title suggests I wish to create a new dom element (the HTML is generated and retrieved via AJAX). I kind of got it working but it appears hidden, and when I try to Fade In it breaks! function AddContent(Content) { div = document.createElement(Content) div.appendTo($("#contentAreas")); // $(div).f...

calling php from js (w/ ajax)

Hi, I'm building a basic forum where every post contains some text, first and last name, and the date the message was written. I'd like to have the board update with AJAX constantly, and to add new messages on the fly as they are written. I have a file, getlatest.php?date=... that retrieves all messages from the date in the $_GET till N...

XMLHttpRequest vs Socket vs some other approach

I read that XMLHttpRequests are best suited for content that has an update frequency of 30 seconds or more. The same article mentioned that web apps that needed a faster frequency should use a socket. I can't find the article/book that mentions this (If anybody can post links to articles that discuss this, I would appreciate it). Does...

jquery functions doesn´t work after external loading

hello everyone! I have a website.. with three div columns, colA colB and colC. on colA i have a menu that triggers some ajax functions to load text on colC and thumnails on colB. it works perfect.. here it is a piece of code. var loading = $(".loading"); var content = $("#colC"); var thumbs = $("#colB"); $("#menu li a").clic...

How can I tell if "abort()" has been called on an XMLHTTPRequest

Simple question, but not obvious from the Mozilla JS docs. Anyone know the answer off the top of their head? ...

Strategies for auto completing a text box with ajax

How does youtube, google, facebook and even Stackoverflow achieve great performance with their auto-comlete boxes? It's really fast and feels like its a local search even though in the background they are probably calling a DB. (Imagine all the resources needed for a DB call!) Is it ALL about Server and bandwidth? What are the strategi...