JQuery :: Get Notified When New DOM Elements Are Added?
Apr 19, 2010
The requirement is, "save" operation should happen only when the form is "dirty". i.e., users should be able to save only when they modify something on the form.
For this, I'm using "dirty form plugin", which works fine even when new elements are added. It internally uses ".liveQuery()" for adding events to new elements but it is degrading the performance very badly, since our forms are very large. I'm trying to replace it with ".live" of jQuery 1.4.2, but have a problem.
When new elements are added, I want to store their initial values and on blur, i want to compare them with their latest values. I'm able to bind event handlers to new elements using ".live()", but I want to get notified when new elements are added, so that I can make the above check. Is there any way how I can check this?
I will be adding 3 additional <div class="slide"></div> after the first one dynamically on $(document).ready(). In the DOM, it looks like this. code...
I am using jquery to copy a DIV containing some form elements. The copy is appended to the DIV in another DIV to allow an unlimited number of form elements to be sent. The problem is that none of the copy DIVs are being sent by the browser Firefox. There is some chatter via google, but nothing conclusive. I see the DIVs show up in Firebug. Could this be jquery related?
I am generating HTML based on user actions (in this case, populating a table with the result from AJAX calls).
In my context, I have a link where there is a Quantity field, which I would like to be editable. When I create the html, I give a unique ID to each row, (to reference to a JSON object), however I am unable to get the ID for said row, seeing as the DOM tree is parsed on the pageload and doesn't seem to update when I add elements to the page.
This means that $(this).parent('tr').attr('id') is not returning anything at all.
How would I make it so I can retrieve the ID of my row (which was created/added to the page after it was parsed)?
When the user select an option in a dropdownlist, new dropdownlist elements are added dynamically using jquery. When a user clicks on a new option i the first dropdown, I want all the dynamically added events to be removed so that I can render new ones. But it seems the dynamically added events haven't been added to the DOM, so they cannot be removed. Is it possible to remove them? In that case, how? I've read a lot about .Live(), but my problem is not regarding an event - I just need to reach an element(?).
I'm working on creating a little suggestion/autocomplete code for form fields.[code]...
Everything works fine and when I click on the text Foo the form field value is set to foo. But, when I try clicking on a word added to the page by the keyup part of my code above it doesn't work.
I am having problems with slideUp/slideDown effects on elements that I add to page with a AJAX callback. slideUp/Down works on elements that are present on the page load, but doesn't work on all elements added later with AJAX.
These items can be added with ajax... Then I have checkboxes that I can filter some items by using jQuery slideUp/Down. If checkbox is clicked some items are hidden or shown. But as said abowe it doesn't affect the newly added items!
I can't make jQuery methods (html, hide etc.) work properly on newly added elements (added via ajax). It's fine with the the current elements of the page but doesn't work on new ones! I am new to jQuery.
I'm using the following plugin to include pagination functionality in my application In a nutshell I'm developing a map-based application using Google Maps. The markers that I display on the map and the corresponding information windows (infowindows) that are displayed when clicking on a marker are dynamically rendered from records in a database as the user moves around the map. So basically these DOM elements are dynamically removed and added throughout a user's sessionThe contents of these infowindows are what I need to paginate in cases where multiple markers are stacked on top of one another.
I call the paginate() function from the marker's click event handler if that marker's infowindow contains more than one DIV. It all works beautifully until the user triggers an event that causes the markers to redraw (e.g panning the map). Once the following happens the paginate() function mysteriously no longer works. 1. I click on a stacked marker that causes the paginate() function to execute 2. I then execute some event that causes the markers (and corresponding infowindow DOM elements) redraw3. I click on the same marker as was clicked in #1. No errors are generated and the paginate() function is definitely called but the pagination does not occur. I think it might have something to do with jQuery seeing the containing DIV's id as a duplicate ID? Could I be on to something there?
I am using the jquery validation plugin, i am wanting to place all the rrors in one div at the top of the form - which works. The problem is that the first time I submit the form (in FF for MAC) the classes that get assigned to the form elements get added, and removed real quickly. (I have a bg color of red on the form, so i can see a flicker basically) - works just fine in safari. has anyone seen anything like
I have a simple problem and cant seem to figure it out. I have a function in the body.load function that is supposed to highlight rows in my table when i mouse over them. When u refresh the page, the function works properly. When I dynamically add new rows to the table using ajax, I get no response.
I have live focusin and focusout bound for form validation. But if some content is created dynamically (either via a templating system or via ajax) it doesn't seem possible to initialise those elements (i have placeholder text that i might want to add inside the element for example).
Is there an event that is fired when an element is added to the dom?
I'm having a problem where the serialize method isn't serializing form elements that are added to the DOM after the page load. Specifically, when the user clicks on a button some elements are displayed in a dialog that are generated from my server and returned via AJAX. I'm converting from Prototype and didn't run into this problem.
I have adrop-downelement on the page. On the change event I am appending two labels to a text box. The problem is I am able to see the newly added elements on the page while debugging it. but as soon as thepost backoccurs the added elements seems to bedisappearingfrom the page.
In my application I render a couple of elements dynamically after the user selects an option in a dropdown list. When the user selects another option in the dropdown, I want to remove all the previous elements that was added dynamically. I've tried with the .Remove() function, but it seems the elements cannot be found in the DOM. I've looked a lot at the .live() events.
I'm trying to have a scroll function (scrollIntoView(true)) that scrolls to an element created by JS. This isn't working because when I use document.createElement the element's html doesn't show up in page source so I can't find it using document.getElementById.
I have cleated a bit of code that will dynamicly add a new line to a form so the use can add an infinat number of entires for this element.The code adds the form elemetns in IE and FF ok but when i click the submit button it does not submit the information from the dynamicly added elements in FF.Oddly enough IE works fine!Here is the code:
I am misunderstanding the concept of the xmlHttpRequest.readyState attribute. I would like to be notified when such a page is successfully visited but have a different function invoked when an error (e.g. 404) occurs. How would I do this? Here is the code I have now ...
var xmlHttpReq = false; var self = this; // Mozilla/Safari if (window.XMLHttpRequest) { self.xmlHttpReq = new XMLHttpRequest(); } // IE else if (window.ActiveXObject) { self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); } var strURL = "myURL.html"; self.xmlHttpReq.open('GET', strURL, true); self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); self.xmlHttpReq.onreadystatechange = function() { if (self.xmlHttpReq.readyState == 4) { alert("Web page visited successfully!"); } } self.xmlHttpReq.send("");
In IE the selection box is created, and there is a drop-down box if I click on the down arrow, but I can't see the OPTION text for each option. The options are invisible, yet the box seems fully functional. I went into the debugger and sure enough the selection box has "OPTION" child nodes with the correct "value" and "text" attributes.
I have a grid that I'm adding rows to that include form text input boxes using addRowData. I know I can use the "editable:true" for that but I'd rather not at this time. Anyway I have the <div id=list1></div> surrounded by a <form></form>. Also statically I have a couple of text input boxes and a submit button. When I press the submit button the only parameters that show up in the POSTED data are the static ones. Is there a way to get the form elements "registered" with the form? I know I can always use javascript to extract the data and save it via an ajax call, but if there is a way to do it "correctly"
Example var myRow = {id:"0",call:"<input name='callt"+boxNo+"' id='call"+boxNo+"' class='calls' type='text'/>",amount:"<input name='amt"+boxNo+"' id='amt"+boxNo+"' type='text' value='"+defaultDep+"'/>",residual:"",calculate:"<input type='button' class='buttons' id='b"+boxNo+"'/>"}; $("#list1").addRowData(boxNo,myRow);
I'm a novice here, and I've got such a piece of code:
$(document).ready(function() { $.each(includes, function(index, value) { $('ul#menu-list').append('<li id="' + index + '"><a href="#">' + value + '</a></li>');
[Code]....
Basically, I load an html document on demand, through a menu populated with 'includes' values. Clicking on any item on the menu will load the appropriate document in the #content div and add an 'active' class to the menu item itself, to highlight it.
The loaded document optionally has inline links, that should load documents based on the same id's. Clicking on these inline links loads the appropriate document, but the 'active' class won't be added to the menu item having the same id of the inline link.
The thing I don't understand is that if I put (look at the line with arrows) any other value than 'id' (any valid integer or even 'id * 2') I get the desired result: a menu item having that id gets highlighted, a class being added to it.
I've found a few posts on adding an event to a dynamic element, but that doesn't really help me. What I'm doing is allowing the user to add a textbox, then when a button is clicked i need to find the value for that text box, but it doesn't seem to pick up that the textbox is there.
Oh and that textbox is part of an array of textboxes, all of whose values i need.
I got a, perhaps very easy or perhaps not solvable question about the droppable function, I could not find anything about this so far. I got a basket, and a couple of products. The products are draggable and the basket is droppable. This of course is done in the $(document).ready(function(){} and works fine.
Now I got a button "add new basket" and if the user clicks on it, Javascript generates a new basket like this function addElement() { var content = document.getElementById('content'); var newbasket = document.createElement('div'); newbasket.setAttribute('id','basket2'); content.appendChild(newbasket); }
And now of course the "basket2" div should also be droppable so that my products can be dropped there. But this does now work because the droppable + draggable settings were made in the "ready function" before the new "basket2" div was existing. Is there any way to perhaps reload the droppable + draggable settings that they also fit to the new basket or some other ways?
