I'm having problems with callbacks in the code below:
$.ajax({
dataType : 'jsonp',
jsonpCallback : 'get_json',
success : function(d) { alert(d); },
error : function() { alert("ouch"); },
url : data_url
})}
I have verified that the server is returning valid json. My jsonpCallback is called, but neither the success nor the error callbacks are. I'm stumped by this.
I am trying to execute slightly more than "Hello, world" using .ajax() specifically and with both a success and error callback. I have:
[Code]...
This could appear under Ajax, for example, you could have multiple objects that make a singular ajax call (say an RPC-like request) and you need to update the object that made the call during the callback with the result, but it doesn't have to be. The particular problem I'm thinking about happens to be ajax, particularly with multiple objects accessing the same ajax request (meaning I can't use a global or temporary variable).
One way that seems like it would work (just thinking about it in my head), is to create a hash, and to pass the key through the request, store the key in the response, and pick it up on the callback side. Then remove the item from the hash when done.
I've got an ajax prefilter which defines a success, an error, and a complete function callback onto the jXHR object. During a successful ajax response I first his the success function callback (as expected), and if I throw an error from within this callback I hit the error callback (again, as expected). However, at this point I would assume my complete callback would be called, yet it never is. I ran a sanity test by issuing an ajax request to an undefined URL, which throws a 404, and it triggered my error callback and then my complete callback as expected.
View 5 Replies View RelatedI'm making a call to a Twitter JSON feed, and when I pass an incorrect username, jQuery's ajax complete method never gets called.
An example of a JSON response that causes complete not to be called (nor error, nor success) is: [url]
Here's my code:
Any ideas on why the complete method isn't getting called? Shouldn't this always get called?
I'm using jquery-1.4.2 with PHP. I have a grid of records with a link to a form i'd like to use to edit the row with. The form is built using php, and works as expected when called just using a regular html link.
When the form is called using $(".ajax").click(function(event), the form comes up, but the textarea(s) are messed up; <textarea>Stuff for the text area
I have something that's called with AJAX when the user enters some text [url]. What I want is to execute some javascript within this "frame". If the frame calls something, with say <script type="text/javascript"> document.write('h'); </script> in it, then "h" doesn't appear, and neither does anything besides what would normally be shown if I didn't add that.
View 6 Replies View Relatedlike theres two pages.page one calls page two and displays the output of page 2 on page 1 via ajax.now can i click on page 2's output(on page one) and have it execute another javascript function to call AJAX(a third page)
View 1 Replies View RelatedI am using a form validation class I got from the internet. Now I have a main page wherein I have a <div id="form"></div> that, using AJAX, displays other pages with forms like textboxes, etc. for a user to input. Here is the code for my main page:
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[Code]...
how to use jQuery I created my own AutoComplete Textbox (although there is one in the jQueryUI Lib). The users types something in a textbox and after 3 characters, the getJSON method is beeing called. This processes the data by calling another site and after received the data, it displays the result in a div tag.If a user types something, it automatically searchs - my problem is the delay. Because if a user continuous, he will already receive (delayed) results - so far it works as designed. My question is, how can I stop the other callbacks of being processed and only receive and display the details of the last callback?
Attachments
AjaxSearch.txt
Size : 4.14 KB
Download : 306
I'm using jQuery-1.6.2 and stumbled upon the problem that exceptions within AJAX callbacks are silently ignored:
$.ajax({
url: '/',
success: function() {
[code]....
Really excited about the new 1.4 release. Looks like a lot of good stuff. Anyway, I've been using the json format to pass data back from the server and after upgrading to 1.4 I'm getting the parsererror, even when I simplify my response to something like:
In php I've been using:
To set the header.
Guess I'm stuck using the older version until I find a solution.
The documentation on e.g. the fadeIn() method does not specify any constraints on the callback argument. Does that mean that 'anything will work'? Specifically, is recursion allowed?I want to know whether jQuery design has deliberately taken this into account. Yes, I can read the source code. No I don't plan to do so (for now), since I consider it an essential gap in the documentation.[code]
View 5 Replies View RelatedI am trying to develop a iGoogle-like dashboard that uses JSONP to get the content of each widget from other (trusted) sites.Each widget is a div that will take care of getting its content using $.ajax() and use the callback to update the div with the html content returned with JSONP.The problem I have happens only in Firefox (I'm using 3.6.3):when a site is unavailable or takes longer to return the JSONP content for a widget, it seems that the callback for the other widget does not get executed. All the widgets stay in the "loading" state although I'm sure they have all received the answer.What's puzzling is that if I hit the "stop" button of Firefox, the content of the other widgets get displayed (ie. their displaying callbacks get executed).
If the calls are asynchronous, what prevents Firefox from executing the callbacks for the other widgets once the response is received?Do you have any idea of what's happening and if there's some way around this?
There is probably something going on in my environment but when running 1.5.2, jquery runs and behaves fine. When I switched to 1.6.1 immediately the success callbacks of ajax functions did not trigger. I did not see the release notes mention anything new regarding that.
This includes
$.post("url", function() { console.log("will i get printed?"); });
Here is a code sample which fails
$(".foo").click(function(e) {
var link = $(this);
e.preventDefault();[code].....
The callback function for the ajax is never invoked.As part of my application, I have the following ajax setup going
$.ajaxSetup({
'beforeSend': function(xhr) {xhr.setRequestHeader("Accept", "text/javascript")}
});
Firefox 4.0.1, Ubuntu 10.04, Firebug 1.7
What is a callback function and how do we make and use them?
View 3 Replies View RelatedWhen the JS file is not working at the time of Ajax files is called. on first time the onmouseover JS is working but , if you call the ajax JS is not working.
View 2 Replies View RelatedI need to do something unusual. Say a user is browsing my site, and before they navigate away, I need to perform some actions like logging them out, for which they would need some data from the server. On onunload, a SJAX request (AJAX with that parameter as false) is issued, code flow hangs, and when the result comes in, code flow resumes and does what it needs to. If AJAX were used, the script would unload and never get the callback. Ok. So that's what I want. The problem is that I'm dealing with something other than an XMLHttpRequest object, and I can't simply supply a false parameter to the request function. I'm looking for some way to wrap an asynchronous routine of this object into a synchronous one. If call var result = myobject.get(data_to_send), code flow here hangs WHILE myobject calls this funky XMLHttpRequest-like object in asynchronous mode, waits for the callback, the callback is called, and myobject returns the result. So code stops synchronously outside of myobject.get, but waits asynchronously inside.
View 2 Replies View RelatedI'm animating a sliding panel but my callback executes right away when you click the slider link.This is the code:
Code:
$(document).ready(function(){
var stat = 0;[code]...
anything wrong with my animate function? (the callbacks are when it add/removes a class)
This might be a bit tricky. I want to call a method of a class using the setTimeout code, ok, can do this like this:
var instance = this;
timerID = window.setTimeout( function() { instance.Method(); }, 1000);
Now I want to call a method a number of times from with the class and when they
have all finished I want a second method to be called, I don't want the methods
themselves to be altered, i.e. I want this to be generic.
Here was my idea:
var timerCounter = 0
function CallFunc(func, callbackFunc)
{
timerCounter--;
if(timerCounter == 0)
{
callbackFunc()
}
}
function DoAsyncRequest(func, callbackFunction)
{
timerCounter++;
return window.setTimeout( CallFunc(func, callbackFunction), 1);
}
You would call this using something like:
timerId = DoAsyncRequest(this.method(), this.method2());
How could I do this, tryed using eval to no avail. I just don't know the
language well enough yet.
I needed access to the form that's being submitted in the options.success() function (in order to hide the form after successful submission). I ended up modifying line 222 in jquery.form.js. I added $form as the third argument for all callbacks, like so:
options.success = function(data, status) {
for (var i=0, max=callbacks.length; i < max; i++)
callbacks[i](data, status, $form); // added $form as third argument.
};
Is there a better way of accessing the form from the callbacks or would the plugin developer(s) consider adding this or another similar modification to the code?
When JQuery initiates an action (e.g. an Ajax PUT) it sets up a callback to handle processing the event when the time dependent action completes. Since the callback operates as an independent thread, it cannot return to a calling routine via the "return" instruction. Is there a way to preserve the context somehow to return to a calling routine? Perhaps another type of callback event?
View 1 Replies View RelatedI have a function that sends some data to a PHP file for processing, and call a page refresh after that, but it's not working. This is what I have so far:
function Reload() {location.reload() ;}
function del(v,m,f){
$.post("system/reject.php", {id: v}) ;
javascript:parent.mainFrame.document.location.reload();
}
The function Reload is something else I tried while trying to get it to work but everything I have done so far doesn't work. :(
I want to run a function only if it has been called from lets say another function, is there an event handler for that? I dont want to call the function on document.ready since it will load without being called?
for example, the below function is run when page loads, how do I just run it only when I call it directly, say from another function..
$(function() {
$( "#progressbar" ).progressbar({ value: 0 });
});
$("#test").droppable({
tolerance:'touch',
drop: function() {
[code]....
The above code works fine at Firefox and Google Chrome. And it works at IE 8 for the first drop action. The ajax method is not called after the first call although the append still works.
So I have a menu animation that I built in flash/actionscript 2.0 and when you click on menu the header pulls down to reveal the menu, then you can click on menu again to push the header back up and hide the menu. I have a <div> below the header that I am trying to "push" down and "pull up" with the menu animation so what I did was in the actionscript button I used
on(release) {
getURL("javascript:moveDown();");
menuanim.gotoAndPlay(2);
}
That's the code for "pulling" the menu down, it's pretty much the same for "pushing" it up but calling for "moveUp()" instead of moveDown().So in my html I am using...
<script>
function moveUp() {
$("#moveme").animate({
[Code].....
the div is labeled as <div id="moveme" style="margin-top: -250px; width: 920px; height: 1000px; overflow: visible;"> if I use a regular javascript function that just moves the div it works, but looks horrible, as soon as I try to animate it it does nothing at all. I have tried using different sytax's likemarginTop: "-325px" and even "margin-top": "+=-325px" but nothing is working, it just will not move.
