I am trying to show a loading image while my ajax call is running, however using the beforeSend attribute is not changing my result area.
$.ajax({
url: "/answer_checker.php",
global: false, type: "POST",
data: ({...clipped...}),
cache: false,
beforeSend: function() {
$('#response').text('Loading...');
},
success: function(html) {
$('#response').html(html);
}
}
Thanks in advance.
I had a similar problem. To resolve my issue, I replaced the .text, in the beforeSend section, with .html and created a html tag to insert into the element that holds my status. The success function did not replaced the content created by the .text() function but it did replace content created by the .html() function.
$.ajax({
url: "/answer_checker.php",
global: false, type: "POST",
data: ({...clipped...}),
cache: false,
beforeSend: function() {
$('#response').html("<img src='/images/loading.gif' />");
},
success: function(html) {
$('#response').html(html);
}
}
I have a solution, it may not be the best way to do it but it has worked in this case.
$('input').keyup(function () {
$('#response').text('loading...');
$.ajax({
url: "/answer_checker.php",
global: false, type: "POST",
data: ({...clipped...}),
cache: false,
success: function(html) {
$('#response').html(html);
}
});
});
By setting the resonce content before calling the ajax function it remains showing the loading text until the ajax call updates the same content.
Thanks to everyone who took the time to answer.
Alan
You are were missing a comma after cache: false
You can also use the following:
$('#tblLoading').ajaxStart(function() { $(this).show(); });
$('#tblLoading').ajaxComplete(function() { $(this).hide(); });
Related
I am now in javascript, I am trying to display a indictor icon when ajax starts and hide it when it finishes, below is my code:
CSS:
div.ajax-progress {
//some setting and url
}
<body>
<div class="ajax-progress"></div>
</body>
Javascript:
$('#fileToUpload').on('change', function(e) {
var file = e.target.files[0];
var formData = new FormData($('form')[0]);
imageId = cornerstoneWADOImageLoader.fileManager.add(file);
$.ajax({
url: 'loadfile.php',
type: 'POST',
data: formData,
async: false,
dataType: 'json',
timeout : 60000,
beforeSend :function(){
$(".ajax-progress").show();
}，
success: function (html) {}
$(".ajax-progress").hide();
//doing something}
});
});
but nothing happens, any idea? appreciated.
Maybe if you put $(".ajax-progress").show(); before the call of ajax $.ajax({}); and them hide it in the succes.
I don't know if that's the same to what you have in your code but you commented out the success closing bracket }
you can also use console.log() or alert() to see what's going on in your code.
Try rewriting your ajax as below:
$.ajax({
url: 'loadfile.php',
type: 'POST',
data: formData,
async: false,
dataType: 'json',
timeout : 60000,
beforeSend :function(){
//do something
}，
success: function (html) {
//doing something
}
});
$(document).ajaxStart(function() {
$(".ajax-progress").show();
});
$(document).ajaxStop(function() {
$(".ajax-progress").hide();
});
This will show and hide $(".ajax-progress") in all your ajax requests within the application.
For some reason I can't make this code work, I am trying to reload/refresh the page using GET. All the sample codes that I have found uses POST but I can't go to that because our forms require GET.
This is my code:
$.ajax({type: "GET",
url: "CorrectResults",
data: data,
beforeSend: function() {
console.log("Submitting Data");
},
cache: false,
success: function(html) {
document.location.reload();
//location.reload(true);
//$("#acceptDiv").html(html);
}
});
It should be a simple way to get this done, why this is so easy with POST and not with GET?
Here we go:
$.ajax({type: "GET",
url: "CorrectResults",
data: data,
beforeSend: function() {
console.log("Submitting Data");
},
cache: false,
success: function(html) {
window.location.href= "../yourUrl";
}
});
Hope it helps;)
if you have not any other error in your script( please go to console in your browser press F12),
then you can try with location.reload();
in your success method, like that:
$.ajax({type: "GET",
url: "CorrectResults",
data: data,
beforeSend: function() {
console.log("Submitting Data");
},
cache: false,
success: function(html) {
location.reload();
}
});
I'm calling php file through ajax call and if it returns nothing i want to redirect user to another page (It's for error reports, if it doesn't return anything it means that user logged in). Tried to add error section but it doesn't work. Any suggestions will help. Thanks! Btw, I have small jQuery function at the top of the ajax function, why it breaks my whole ajax call?
ajax.js
function loginAjax() {
//$("#email_errors").empty(); //This function doesnt work and kills whole ajax call. Here is loginAjax function call line - <button type = "submit" id = "push_button" onclick = "loginAjax(); return false">PushMe</button>
$.ajax({
url: "Classes/call_methods_login.php",
type: "POST",
dataType: "json",
data: {
login_email: $("#login_email").val(),
login_password: $("#login_password").val(),
},
success: function(data) {
$("#login_error").html(data.login_message);
}
});
}
$.ajax({
url: "Classes/call_methods_login.php",
type: "POST",
dataType: "json",
data: {
login_email: $("#login_email").val(),
login_password: $("#login_password").val(),
},
success: function(data) {
$("#login_error").html(data.login_message);
},
error: function(){
window.location.replace("http://stackoverflow.com");
}
});
}
To redirect using javascript all you need to do is override the location.href attribute.
function loginAjax() {
$.ajax({
url: "Classes/call_methods_login.php",
type: "POST",
dataType: "json",
data: {
login_email: $("#login_email").val(),
login_password: $("#login_password").val(),
},
// the success method is deprecated in favor of done.
done: function(data) {
$("#login_error").html(data.login_message);
},
fail: function(data) {
location.href="path/to/error/page";
}
});
}
I know that in some browsers (IE, Chrome) that changes to the DOM won't take place until after a function is completed. I have read through various suggestions on how to deal with this, but I'm not having any luck. I'm trying to loop through a series of AJAX calls and show progress for each line that is being processed. The code is like this:
for(i=0; i < rowIds.length; i++){
$(rowImage).attr('src', '/images/spinner.gif');
$.ajax({
type: 'GET',
url: ajaxUrl,
async: false,
processData: true,
data: {},
dataType: "json",
success: function(data) {
$(rowImage).attr('src', '/images/success.gif');
}
});
}
I've read several suggestions about trying to insure that the image transformation takes place before proceeding, such as doing this before the AJAX call starts:
var changeImage = function() {
$(rowImage).attr('src', '/images/spinner.gif');
};
$.when(changeImage() ).done( function() {
//run AJAX call
But that doesn't make a difference. The images don't change until after the function is finished executing.
You will note that I have async set to false, and I'm doing that for various reasons. But even without that in place, the issue persists. I've also tried using setTimeOut() as has been suggested, and that doesn't seem to work (And I know that setTimeOut() is meant for async mode, but even in async it doesn't seem to help.)
Jquery:
$.ajax({
type: 'GET',
url: ajaxUrl,
async: false,
processData: true,
data: {},
dataType: "json",
success: function(data) {
$(rowImage).attr('src', '/images/success.gif');
}
});
$(document).ajaxStart(function () {
$(rowImage).attr('src', '/images/spinner.gif');
}).ajaxStop(function () {
});
I have a mobile app using mostly JQuery Mobile. I have an ajax function using POST and I can't seem to get anything to effect the UI when I fire the click event. I tried setting
$('#cover').show();
as the very first thing in the function then I do some basic things like document.getElementById('user') etc to set some variables and check input, but as long as the ajax function is there it won't show the div or even the spinner from JQ Mobile. Unless I debug and step through the code then the spinner and div show up fine. I tried setTimeout and putting it in the beforeSend area of the ajax call. Everything works fine otherwise. It seemed to work a little better with GET I'm not sure if that has anything to do with it or not.
$.ajax({
cache: false,
type: "POST",
async: false,
url: urlString,
data: jsonstring,
contentType: "application/json",
dataType: "json",
success: function (data) {
JSONobj = JSON.parse(data);
},
beforeSend: function(xhr){
//console.log('BeforeSend');
},
complete: function (xhr) {
//console.log('Complete');
},
error: function (xhr, status, error) {
console.log(error);
}
});
You could use the Ajax Global handlers to handle this:
$(document).
.ajaxStart(function(){
$('#cover').show();
})
.ajaxStop(function(){
$('#cover').hide();
});
This way you don't have to worry about showing/hiding the overlay on individual Ajax calls.
Try this
$("#someButton").click(function(e){
e.preventDefault() //if you want to prevent default action
$('#cover').fadeIn(100,function(){
$.ajax({
url: "someurl",
data: "Somedata",
contentType: "application/json",
dataType: "json",
},
success: function (data) {
JSONobj = JSON.parse(data);
$('#cover').fadeOut(100);
},
complete: function (xhr) {
$('#cover').fadeOut(100);
}
});
});
});