I have just got a questioned answered and have fallen into another trap!
I have a form which is in a lightbox and I want to track every change in the select elements. When they change I want to get the value of each of the select elements. I have tried to do the following:
$('select.htt, select.hst').live('change', function() {
var channels = parseInt($('select.hst').val(), 10) * parseInt($('select.htt').val(), 10);
alert($('select.hst').val() + ' and ' + $('select.htt').val());
$('span.yellow2').html(channels);
});
However, the values are always the same i.e. the first option in each drop down box even though there are other options selected. I am guessing like somebody has explained before. The lightbox I am using takes a copy of these elements and makes changes to them and JQuery can not see this, but I have been told to reference the elements via classes which has worked but only up to this point.
What else can I try and what is the problem?
I really appreciate any help.
Thanks all
The reason for your problem is that you have two (or more) copies of your select elements. When you call $('select.hst').val(), jQuery returns the value of the first select element with class hst that it finds, which is not the value you want.
You will have to find a way to scope your jQuery selectors to only the elements inside the visible lightbox div. If the lightbox div has an id or some other unique attribute, use that to scope your form/select/span elements.
If the lightbox div has id "lightbox":
<div id="lightbox">
...
</div>
Use selectors of the form:
$('#lightbox select.hst').val();
Two things (try the first then then the first + second):
You are choosing select, not option, so try choosing all options that are selected
$('select.hst option:selected').val()
Second, you are choosing val() which will return the value attribute of the option. Just in case you want the text instead, choose text().
Related
I want to make a very simple mix and match system, where the user chooses items from a select drop down menu which triggers things. I have buttons that are appended to the document in a rather off the cuff manner, that is to say, whenever the user chooses something from the select some text will appear as well as a button to remove that text (and corresponding button). I'm using D3 to manipulate selections, add classes and append things. I use classes to tell the button which text to remove. All that being said, I believe this still could simply be a native javascript problem I'm running into. The problem is as follows:
After you choose some things from the select drop down menu, and then proceed to click the x buttons in the order bottom to top, the behavior is as desired. However, if you click a button at the top or in the middle, the button will not remove the right text. I believe that is because the button is simply removing whatever the latest string value of the dynamic class I'm using. That makes me doubt that the button actually retains the initial properties of its .on('click', function() {}) (hence the post title).
If that's the case, I'm not really sure how to circumvent such an issue, as the buttons are dynamic in nature.
Very short and simple example here.
No need to retain memory kind of thing just make sure your element is accessible one such scenario would be to save the id reference of element as class of another element like this
d3.select('body').append('button')
.text('X')
.attr('id','b'+(intCount+1))
.attr('class',choice+'1') //class is the id of the text element
.on('click', function(d,i) {
var t = d3.select(this).attr('id')
var c = d3.select(this).attr('class')
var thisChoice = choice;
d3.selectAll('.' + t).remove(); //remove this element
d3.selectAll('.'+ c).remove(); //remove text element
intCount -= 1;
count -= .7;
});
working FIDDLE
I have a problem with jQuery function clone(). I think the problem is in the withDataAndEvents input parameter of this method.
Initially, I'm coding a table that has dynamic rows. I'm adding dynamically rows when clicking on a button put only in the first row. the first row contains initially many inputs fields and combo-boxes. Each field is initalized by an ajax call. And each action on a field leads to the refresh (filtering) on the whole fields of a row. I'm also using autocomplete on input fields.
The first row works perfectly. However, when cloning the tag:
If I did not enter values in the first row, the cloned and first row work fine
If I enter a value or values in first row fields and after I clone the , only the first row fields still work. In this case, if I try to change the value of the combo-boxe (which fire a change event for all concerned row fields), the fields of the first row are impacted despite using Ids when changing autocomplete data. Ids of fields, combo-boxes, table rows are dynamically created when clicking on the button to clone the widget.
The code I wrote is too long so I created a fiddle and simplified the case and still have the same problem.
I tried many suggestions that I've found like this, this one or this one in vain :-(
(data.('autocomplete', null), autocomplete("destroy") ...)
Do you have ideas about this issue ?
thanks in advance
Aside from the typo in the test (you are selecting by class instead of the new element by id), the basic problem is you are applying autocomplete before you add it to the DOM.
JSFiddle: http://jsfiddle.net/TrueBlueAussie/87jcw1y0/2/
I just reversed the order of these two lines:
$('.body').append(clone);
applyAutoComplete2('#myinput' + inc);
The cause... Some plugins use storage data associated with the DOM element, or attach events to ancestors etc. None of these can happen with a disconnected DOM element, so just attach it to the DOM first.
I think ur asking this
Check in this link http://jsfiddle.net/bsarunmca/87jcw1y0/3/
applyAutoComplete1('#myinput1');
$("button").click(function() {
inc = inc+1;
$('#myinput1').clone().attr('id','myinput'+inc).appendTo('.add-this');
$('#myinput'+inc).val('');
applyAutoComplete2('#myinput'+inc);
});
I have a div which I need to empty excluding a couple of divs inside it, the problem is, I have got it to work but the div's lose there jquery click functionality.
I have a stage which will have items dragged on them but I need to be able to empty these items but retain the click buttons which are also on the stage and stored in a div called keep.
I found this and it works but the things inside #keep still appear but they lose their jquery .click().
var $stage = $('#stage'), $noRemove = $stage.find('#keep');
$stage.html($noRemove);
This is because they are being removed and then re-added.
You either have to remove the children. OR Rebind the click method afterwards.
So for example:
$noRemove.click(function(...){});
See the Fiddle here : http://jsfiddle.net/r98dj/1/
Also, as a note. Make keep a class. Otherwise you'll end up with multiple divs with the same ID and this will cause you to fail W3C validation.
I have a number of subtopics I would like to select using a select / dropdown box. The problem I have is that each subtopic is 30-50 words long. Does anyone know of any way that I can have multi-line selects within a select box? Right now I can show the select but because of my page size I have some data trucated.
I guess maybe jQuery has a solution but not sure as I'm not so familiar with jQuery
You better use autocomplete
To make the dropdown elements multi-line, just edit the css of .ac_results li making it taller (for instance, change line-height)
Instead of using a stock-HTML select element, perhaps consider using a div with n other divs inside it, each with their id as the ID of the subtopic (likely you'll need to prepend something if the Ids are numerical). Show the div on click of whatever, select the subtopic on click of the individual subtopic div. You can then style the divs how you want, allowing text to wrap, etc. This would also work well with an unordered list.
G
I'd change my mind using something different than a select, rather using a div (or dialog, or accordion) with selectable items in it using jQuery UI.
I know that I can get the (numerical) index of the currently selected tab like this:
$('.selector').tabs('option', 'selected');
Is there a way to get the ID of the currently selected tab, outside of an event handler? By "ID" I'm referring to the string property (ui.panel.id) in the ui object that's passed in as an argument to an event listener callback - but I'm trying to do it outside of a callback.
I know I can hack together my own solution, but I want to make sure I'm not reinventing the wheel first.
I'd would rather work with IDs than indices so that changing the order of my tabs doesn't break my code - it's at least a little more robust and readable.
As far as I know, selected tab has class ui-tab-selected. You may use
$('.selector').find('.ui-tab-selected a');
to fetch selected tab. It was element, where href attribute - identifier of active panel.
#Matt Ball
You can select it using the "ui-state-active" class associated with the active tab and then get the id from the inner href link:
var selected_tab_id = $('.ui-state-active a', '#ui-tabs-widget').attr('href').split('#')[1];
'#ui-tabs-widget' is the id for your actual tabs widget so replace it with it so the active tab is selected only in the widget you wanted to and not in every one in the page.