I have got site with dynamic refreshing divs.
Source:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.0/jquery.min.js"></script>
<script>
var auto_refresh = setInterval(
function()
{
$('#loaddiv').fadeOut('slow').load('boo.php').fadeIn("slow");
$('#loaddiv2').fadeOut('slow').load('boo2.php').fadeIn("slow");
}, 1000);
</script>
But I want fadeout and fadein only if boo.php return different(updated) value than actuall div. How compare new and actuall value and do this?
P.s Sorry for bad English but I'm Polish
You'll need to write a callback function that inspects the returned data and compares it to what's stored within the div already. Additionally, the functions that show/reveal the div will probably need to be moved to the callback function as well.
Documentation is available here.
You'd have to write an Ajax function to boo.php and compare the result with the div's value
$.ajax(
{
url: "boo.php",
success: function(result)
{
if($("#loaddiv").html() != result)
{
$("#loaddiv").fadeOut("slow")
$("#loaddiv").html(result);
$("#loaddiv").fadeIn("slow");
}
}
});
You need to check the result you are getting from the ajax call and compare it with the current content. Assuming you have an element with ID MsgCount in your Ajax response and current Div Markup and you are using the value of that to compare, the below code will work
$(function() {
var auto_refresh = setInterval(function(){
var currentMsgCount= $('#MsgCount').text();
$.get("boo.php",function(data){
var resultData=$(data);
var newMsgCount= resultData.filter('#MsgCount').text();
if(newMsgCount!=currentMsgCount)
{
//content is different. Let's show it
$('#loaddiv').fadeOut('slow',function(){
$('#loaddiv').html(data).fadeIn("slow");
});
}
});
}, 1000);
});
Related
I'me trying to implement an on/off button on a php loop but I can't make it work because of the id of jQuery event. How can I get the correct id on click and pass it to the rest of the script?
The problem is in the $('#myonoffswitch')...
<script type="text/javascript">
$(document).ready(function(){
$('#myonoffswitch').click(function(){
var myonoffswitch=$('#myonoffswitch').val();
var wnfID=$('#wnfID').val();
if ($("#myonoffswitch:checked").length == 0) {
var a="2";
var b=wnfID;
} else {
var a="3";
var b=wnfID;
}
$.ajax({
type: "POST",
url: "ajax_wnf_status.php",
data: "statusWnf="+a+"&wnfID="+b,
success: function(html) {
$("#display").html(html).show();
}
});
});
});
</script>
I'm generating different id's for the loop rows (ex: id="#myonoffswitch1" ; id="#myonoffswitch2"; etc).
I'm not certain I fully understand the question, but .val() will not get the ID of an element. You should use .attr('id') instead.
Also, it looks like you're trying to format data for a GET request, not a POST.
If I understand the question correctly, I think you're looking for
event.target.id
where 'event' is passed in to your handler:
('#myonoffswitch').click(function(event){
id = event.target.id
. . .
Though at that point, you might not need the id, since you can just use event.target directly.
So i've a situation where I have a selectbox that makes a jquery .post call to another script on a .change event.
I was wondering if there is anyway i can revert the selectedoption back to the original default should something occurs or that my .post event fail?
Hi ppl, I'm sorry.
Here's the javascript code. I've made some amendments to it. I'm trying to get the second line to work as this code is not working now due to some errors(due to don't know what on the second line). My selectbox is part of a list so i'm not able to make it a unique id to it and to remember the box the user selects, i need to use $(this).
$('.order_stateselect').click(function(){
var val=$(this).find(":selected").val();
$(this).change(function(){
if(confirm('Confirm Order Status Change?')){
var conduct_status_chge=$.post('/seller/helpers/order_status_change.php',{order_item_id:$(this).parent('td').siblings('.order_item_id').text(),order_item_status:$(this).find(':selected').val()},function(data){
alert(data);
})
.error(function() { alert("error"); })
}
});
});
Difficult to tell without code, but I'll try
$("#selectbox").data('origValue', $("#selectbox").val());
$("#selectbox").on('change', function () {
$.post(...).done(function () {
// other stuff
$("#selectbox").data('origValue', $("#selectbox").val());
}).fail(function () {
$("#selectbox").val($("#selectbox").data('origValue'));
});
});
Use something like this
var value=$("#selectbox").val();
$.ajax({
type:post,
url:"something.com",
success:function(){
},error:function(){
$("#selectbox").val(value);
}
})
$('select').val('defaultvalhere');
You could use this to select first option not regarding default value:
$('#selectId option:eq(0)').attr('selected',true);
you can simply use a global variable to save the option selected previously. Once save you can just use that on your error Its something like this
<script type="text/javascript">
this.previousVal = 0;
function changeHandler(selectBox)
{
$.ajax({
type:post,
url:"URL",
success:function(){
//ur code
this.previousVal=selectBox.selectedIndex;
},error:function(){
//use previousVal and set the value back to the previous value
}
})
}
</script>
<select id="changeLang" name="changeLang" onchange="changeHandler(this)"></select>
I have a multi level select chain, where by the value of the first select generates the options for the next select list. And within the second list some of the values will cause a div to display with another input.
My codes (below) seem to work just fine when tested on static content (ie: the second select is hard coded in the html). But when I add it with JQuery, the second level no longer triggers the .change function.
<script type="text/javascript">
$(document).ready(function() {
$dts = $("select[name='tourdes']");
$dts.change(function() {
var dtsValue = $(this).val();
var dtsString = '?tourdes=' + dtsValue;
$('#dateSelect').show();
$('#dateSelect').load('include/avdates.php' + dtsString).append();
});
});
</script>
<script type="text/javascript">
$(document).ready(function() {
$tags = $("select[name='tourcode']");
$tags.change(function() {
if ($(this).val() == "private") {
$(".prvcal").css({"visibility":"visible"});
}
});
});
</script>
I am guessing something needs to be re-initialized, but I am getting no where with my experiments.
If you're using jQuery 1.7 you'll want to use on, as both live and delegate are deprecated.
$(document).on("change", "select[name='tourcode']", function() {
var dtsValue = $(this).val();
var dtsString = '?tourdes=' + dtsValue;
$('#dateSelect').show();
$('#dateSelect').load('include/avdates.php' + dtsString).append();
});
docs for on()
You are probably using dynamically-generated HTML elements. If that is the case, you need to use .delegate() to handle them:
$('select').delegate("[name='tourdes']", 'change', function() {
somehow still not able to do what I’m inted to do. It gives me the last value in loop on click not sure why. Here I want the value which is been clicked.
Here is my code:
$(document).ready(function() {
var link = $('a[id]').size();
//alert(link);
var i=1;
while (i<=link)
{
$('#payment_'+i).click(function(){
//alert($("#pro_path_"+i).val());
$.post("<?php echo $base; ?>form/setpropath/", {pro_path: $("#pro_path_"+i).val()}, function(data){
//alert(data);
$("#container").html(data);
});
});
i++;
}
});
Here the placement_1, placement_2 .... are the hrefs and the pro_path is the value I want to post, the value is defined in the hidden input type with id as pro_path_1, pro_path_2, etc. and here the hrefs varies for different users so in the code I have $('a[id]').size(). Somehow when execute and alert I get last value in the loop and I don’t want that, it should be that value which is clicked.
I think onready event it should have parsed the document and the values inside the loop
I’m not sure where I went wrong. Please help me to get my intended result.
Thanks, all
I would suggest using the startsWith attribute filter and getting rid of the while loop:
$(document).ready(function() {
$('a[id^=payment_]').each(function() {
//extract the number from the current id
var num = $(this).attr('id').split('_')[1];
$(this).click(function(){
$.post("<?php echo $base; ?>form/setpropath/", {pro_path: $("#pro_path_" + num).val()},function(data){
$("#container").html(data);
});
});
});
});
You have to use a local copy of i:
$('#payment_'+i).click(function(){
var i = i; // copies global i to local i
$.post("<?php echo $base; ?>form/setpropath/", {pro_path: $("#pro_path_"+i).val()}, function(data){
$("#container").html(data);
});
});
Otherwise the callback function will use the global i.
Here is a note on multiple/concurrent Asynchronous Requests:
Since you are sending multiple requests via AJAX you should keep in mind that only 2 concurrent requests are supported by browsers.
So it is only natural that you get only the response from the last request.
What if you added a class to each of the links and do something like this
$(function() {
$('.paymentbutton').click(function(e) {
$.post("<?php echo $base; ?>form/setpropath/",
{pro_path: $(this).val()},
function(data) {
$("#container").html(data);
});
});
});
});
Note the use of $(this) to get the link that was clicked.
I have code as follows:
$("#item_select").change(function()
{
var params = $("#item_select option:selected").val();
$.post('/account/ar_form.php', {idata: params}, function(data){
$("#message_display" ).html(data);
});
});
This is a dropdown that uses /account/ar_form.php to display html in the div correctly.
But it only displays on the change event. I'd like it to preload the data. When I use a load event, it will display the html, but on change, it displays it twice.
$("#item_select").change(function(){
var params = $("#item_select option:selected").val();
$.post('/account/ar_form.php', {idata: params}, function(data){
$("#message_display" ).html(data);
});
}).triggerHandler("change");
It depends a bit... what does your ar_form.php return with blank params?
You could do a hackish way (at fear of being downvoted) by calling
$("#item_select").change();