I'm working on a php/jQuery application, I want to display a loading image automatically every ajax request, without writing code for every ajax request. Is there anyway to do this.
View 1 RepliesI'm creating a site using AJAX and I would like for an ajax loader to appear in between the page loadings.
$("#menu ul li").click(function(event) {
$("#ajaxLoader").show(function(){
alert('hello');
});
setTimeout("jQuery.fn.test("about");", 3000);
});});
jQuery.fn.test = function(page) {
$("#content").load(page + ".html");
$("#ajaxLoader").hide(function(){
alert('good bye');
});};
This works perfectly the first time - the ajax loader appears for about three seconds before disappearing and instead the page is displayed. But the second, third, fourth ... time, the ajax loader never shows up.
Does anyone know how to add an ajax loader to the remember the milk validation example? So that while the backend is busy, it shows the gif, when it's finished, it hides the gif...
View 5 Replies View RelatedI am also trying to achieve , displaying a loading activity indicator gif till the server (JSP) processes the validation work for my Ajax call.
Below is my code:
Code:
var httpRequest = newXMLHttpRequest();
//Show loading activity indicator gif
showLoadingImg();
[Code].....
The only thing I am not able to see the loading gif functionality.. But as I said..
If I put an alert message in function showLoadingImg() or the make the red line uncomment (making the line a error), Then I am getting the loading gif functionality work..
But, all next functions fail due to above red lined error (if its uncommented).
It looks like IE is caching the response for some AJAX requests here. The app I'm working on is a catalog of sorts. Clicking the link for a category loads a set of "items". Those, in turn, may be deleted from the admin view. The delete works fine (I checked the DB) but, when loading the same set of category items, I'm seeing the list unchanged. That is, the thing that was deleted is still there. Sorry for the crap explanation but I'm not really sure of a better way of putting it. Bottom line is, has anyone seen this sort of behavior with IE before? Can it cache the result of an AJAX request like that? And, if so, how can I guard against that? Can I set cache-control headers for an AJAX request?
View 2 Replies View RelatedVery intermittently, I am finding ajax requests submitted with jquery are being submitted twice, once with parameters, and once without parameters. The code looks something like this:
[Code]...
I'm trying to launch two ajax requests at same time. I'm expecting result from the first later than the second. The problem is, it won't return me any result from the second request untill first one is returned.
Check it out :
$.post("sendMail.php");
getSendInfo();
setTimeout(getSendInfo,5000);
[code]....
I'm getting response from the $.getJSON function only when the $.post is over. Is this a bug or a mistake from me ? My aim is to launch a long request and fire multiple other requests to check how is doing the first one.
I'm having problems performing a simple load(...) request to bring in HTML content from a partner Oracle system within the same domain. Our portal has a built-in SO connection will handles security for me transparently. However during the process it initiates a 302 temporarily moved response which seems to trip up an AJAX request, but doesn't trip up Firefox when accessed through the address bar. If I use the same URL in an IFRAME it's totally fine.
After tons of googling, searching the forums, and the bug tracker database I cannot find anyone who has experienced this problem. Before I open a bug ticket I'd like community feedback to help me see if I am doing anything wrong.
My AJAX call looks like this in Javascript:
I have a element when click, it will trigger some other elements to be selected. and those elements will trigger elements in next level.
It is a three levels hierarchy so to speak. but each element will send an ajax request when selected. Those requests will become out of control especially when I repeatedly click the root element.
Can I queue those XHR request in a queue and send them one by one? or maybe add a delay before send so that they can collect their information into one batch request and send one request after that.
I have a page that relies on AJAX for content manipulation. Once a person selects a radio button, a request is made through $.getJSON() to get the replacement content. This works in all browsers. Once the new content is loaded, there are 3 more calls to $.getJSON() to change more content (on other tabs in jQuery UI). This works in all browsers except for IE.
I understand this is a Microsoft problem, and not a jQuery problem, but I am wondering if there is a way to manipulate the jQuery calls to get them to work in IE. I did try replacing $.getJSON with $.ajax, and even set async to false. None of those three methods worked in IE. I noticed the problem when my loading div was still displayed in IE. Using Firebug Lite, I saw that only one request was made, rather than four.
I am developing a fairly complicated application with a lot of JavaScript and making use of JQuery. The application repeatedly makes simultaneous GET requests.
I am looking for a way of assigning a unique token to each request when it is made, so that I can store information about that request and cache the request / response combo, when using $.get() (or potentially $.ajax() if required for the extra functionality).
So far I have not had any joy and after a while googling this am none the wiser. I have used similar functionality in Flex 3 with the AsyncToken object which can maintain data between HTTP request / response.
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When a pending ajax request is aborted in IE browsers there is a new global object called "jQuery" + timestamp, for example "jQuery16405272192696596443".
This happens in every IE from 6 to 9 but not in Chrome, Safari, FireFox in their current stable versions. I am a bit lost and found nothing similar. I created a little test page to determine whether it started due to some own code or just in this little piece.
Example HTML:
<!DOCTYPE html>
<html>
<head>
[Code].....
I have a problem where if a form submission (set up to submit via AJAX) fails validation, the next time the form is submitted, it doubles the number of post requests - which is definitely not what I want to happen. I'm using the jQuery ValidationEngine plugin to submit forms and bind validation messages to my fields. This is my code below. I think my problem is that I need to unbind from the validationEngine plugin when the form fails, but I can't figure out how to do this.
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In the below code, the ajax-loader disappears before the html returned by .load is actually visible in the browser. How can I correct it?
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I have this function among many that houses forms. I'm also using an ajax page that is supposed to deal with form's entries and insert everything into my DB and I don't know how to separate the different requests on the ajax page so that it can do what the correct request is.
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This might seem like a silly question..First issue. If i have a response and i'd like to update both text div and a status div how would i go about doing this. I've seen that jQuery has a few options such as OnSuccess etc?
Say that i post a comment and obviously you'd want to update some kinda statusbar on your website with the info that the message was posted successfully with ajax. (otherwise it might slip by the user unnoticed since ajax is kinda discrete)
Would it be a good way to for instance check the responseText if it contains anything and if it does you simply write a successmessage by grabbing a div from JS and if the responseText contains a custom error code lets say 1 you'll update the statusbar with a deny message?
Second thing. I've currently created an Ajax search on my site which activates whenever the user press or unleash the button. The issue is that if the user types fast enough it comes stuck showing the Loading.gif constantly. Could this be due so many requests opening and that i have a sleep on the server-side and if so how would you do it instead? I am using a serversleep of 1 second to have the Ajax pic appear consistently.
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I have a jsp page using ajax that has a button with an action. The action sends multiple ajax requests. The response from these requests is to be used to update a progress indicator to show the servers current progress. I can see from the debug that I am getting the 1st response. I think it is the way how I have implemented the further requests. I think this is down to my javascript knowledge, which isnt very much. Also I assume using multiple requests in this way is the correct thing to do? I have spent ages trawling the internet trying to get a solution.
View 4 Replies View RelatedI'm encountering an AJAX problem when I try to execute multiple AJAX requests at the same time. What I want to do is delete a message and display the status (succes or failure) of that in div1, and refresh the messages on the page in div2. This needs (for as far as my knowledge reaches) two AJAX actions from which I both need the responseText.
The problem:
What happens when I execute my script is that the second action (refresh a part of the page) happens before the deletion is executed. The result of this is that when the deletion has been executed, the page is already updated, and the deleted message is still there.
The script
What I now have is:
function doAjax(url, element_id, img_url){
var ajaxObject = createAjaxObject();
ajaxObject.open('GET', url, true);
ajaxObject.onreadystatechange = function(){
if(ajaxObject.readyState==4 && ajaxObject.status==200){
document.getElementById(element_id).innerHTML = ajaxObject.responseText;
delete ajaxObject; .....
I need to send 15 requests to my server and get results, these results are queries to other sites. I then update my page with the results. I need to know if I am taking the correct approach, as things are working a bit slow, and i.e., seems the be as slow as a snail.
Here is my function for the first request
Code:
function one(){
var xmlHttpa=null;
try{
xmlHttpa=new XMLHttpRequest();
} catch (e){
try {
xmlHttpa=new ActiveXObject("Msxml2.XMLHTTP");
} catch (e){
try {
xmlHttpa=new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
alert("Your browser does not support AJAX!");
return false;
}}}
xmlHttpa.onreadystatechange=function(){
if(xmlHttpa.readyState==4){
document.getElementById('resulta').innerHTML = xmlHttpa.responseText;
var el = document.getElementById('showMessagea');
el.parentNode.removeChild(el);
applystyle();
}}
xmlHttpa.open("GET","one.php",true);
xmlHttpa.send(null);
}
I then call this function and others from my page, one(); two(); etc. Am I correct in my approach?
I need to encrypt my AJAX requests and responses from the server. As the message format I use simple JSON.Can you advise any libraries about it?
View 7 Replies View Relatedwhat I'm trying to do is to automatically launch a function before going in the $.ajax ({success}); method. I've this:[code]My problem is that I first see "success" and then "ajaxSuccess" or would have the opposite.dataFilter function doesn't help me because I can't detect if query is successfull or not and not have the XMLHttpRequest.
View 1 Replies View Relatedhow to display random text automatically with out refreshing webpage using java script...
View 9 Replies View Related<div>I have a bunch of ajax events that are fired one after an other to fill different spots on the page.Hence it's important that I know which dom element each on of the resulting data is supposed to belong to.</div> <div> </div><div>I was wondering if there is a way I can pass the id of each element into the call so that it gets returned automagically without any intervention by the server?</div><div> </div><div>In YUI I can pass any number of arguments to an axax call and these areguments are available as part of the response.</div>
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1- Need to display three values on the screen as the user fills a form: total, required deposit and final balance. I managed to display the total but I can�t make the form to show automatically the two other values (deposit, final balance) unless I ask the user to click on buttons, which is not desirable since $ does not change automatically for deposit and final payment if user clicks on another radio button before sending the form.
2- Need to send to an e-mail the values of total, deposit and final balance, along with the choices the user made (ex: "Quad" and "Med"). I only managed to send the choices, not the totalled values.Here is the code I wrote (for demo purpose, I only put 2 choices vis-a-vis radio buttons):
[CODE]
<html><head><meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Registration</title>
[code]....
How to get the JavaProcessAlert() function to have its effect displayed on the page before and while the ActualJavaProcess() is working. I assume it has to go out of the script block and then back in, but have no idea as to how to make it do so automatically. I hope the code is understandable.
Code:
<html><head>
<script type="text/javascript">
function JavaProcessAlert(){
var Update = document.getElementById('DisplayedText');
Update.innerHTML = "Processing";
<!-- Not sure of how to get from here to body and back to ActualJavaProcess()
automatically for "Processing" to display while ActualJavaProcess() functions. -->
}function ActualJavaProcess(){
<!-- Takes time to complete function -->
Update.innerHTML = <!-- Whatever the result is -->;
}
</script>
</head>
<body>
<p id="DisplayedText" >Get Result</p>
<p><input value= "Start" onclick="JavaProcessAlert();" type="button"></p></form>
</body></html>
I've noticed a subtle yet cool feature in Safari and I'm wondering how
they did it. If you go to YouTube and open one of the videos in a new
tab (Command-click), the page will load in the new tab but the video
won't start loading or playing. Then if you click on the tab, the video
will start playing and loading. If you immediately click back to
another tab, the video will continue loading but will stop playing.
It seems pretty clear how Safari could stop the flash animation from
loading the first time, but how does it distinguish between preloading
activity and video-playing activity when you switch back to the other
tab? Is it possible to emulate this by interacting with the flash
animation with javascript?
I only have limited experience with Flash, which is probably why I'm
puzzled by this. I'm a programmer though so don't spare the details.