Develop Reference

Unable to acquire value of selected item in dropdown

I'm struggling to get the value of the selected item in a dropdown
$('.submitbutton').on('click', function() {
var valueofitem = $(this).parent().children('.names :selected').attr('value');
console.log(valueofitem);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="thingselect">
<select name="names1" class="names">
<option value="1">Car</option>
<option value="2">Bike</option>
<option value="3">Train</option>
</select>
<div class="submitbutton">
<button>
Send
</button>
</div>
</div>
When I select one of the options and click Send, value the is printed to the console is 'undefined' and I can't seem to figure out why.
Thanks for your help!

You can get the value of the selected option by using .val() on the select element (so there is no need to target the selected option) like so:
$('.submitbutton').on('click', function() {
var valueofitem = $(this).parent().children('.names').val();
console.log(valueofitem);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="thingselect">
<select name="names1" class="names">
<option value="1">Car</option>
<option value="2">Bike</option>
<option value="3">Train</option>
</select>
<div class="submitbutton">
<button>Send</button>
</div>
</div>
Or simply get the .val() of the .names class:
$('.submitbutton').on('click', function() {
var valueofitem = $('.names').val();
console.log(valueofitem);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="thingselect">
<select name="names1" class="names">
<option value="1">Car</option>
<option value="2">Bike</option>
<option value="3">Train</option>
</select>
<div class="submitbutton">
<button>Send</button>
</div>
</div>

Change .children to .find.
When you use .children(), it's looking for a child that matches the .names :selected selector, but the child is just .names, :selected matches a granchild.
.find() searches further down.
$('.submitbutton').on('click', function() {
var valueofitem = $(this).parent().find('.names :selected').attr('value');
console.log(valueofitem);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="thingselect">
<select name="names1" class="names">
<option value="1">Car</option>
<option value="2">Bike</option>
<option value="3">Train</option>
</select>
<div class="submitbutton">
<button>
Send
</button>
</div>
</div>

Show/hide divs based on values selected in multiple select2 dropdowns

I am building a search result filtering feature. I have a number of select2 dropdown boxes where the user can select multiple values from to either hide or show divs with matching class values. I have a number of divs with classes containing values matching values in the select2 dropdown boxes. How do I go about coding this functionality?
I can only get this to work for one selection, I'd like to be able to select multiple options from the dropdowns.
$('select.filterCandidates').bind('change', function() {
$('select.filterCandidates').attr('disabled', 'disabled');
$('#candidates').find('.row').hide();
var critriaAttribute = '';
$('select.filterCandidates').each(function() {
if ($(this).val() != '0') {
critriaAttribute += '[data-' + $(this).data('attribute') + '*="' + $(this).val() + '"]';
}
});
$('#candidates').find('.row' + critriaAttribute).show();
$('#filterCount').html('Showing ' + $('div#candidates div.row:visible').length + ' Matches');
$('select.filterCandidates').removeAttr('disabled');
});
$('#reset-filters').on("click", function() {
$('#candidates').find('.row').show();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="row">
<div class="col-md-12">
<br>
<h4>Search Form</h4>
<br>
</div>
<div class="col-md-4">
<div class="form-group">
<select id="type" class="form-control filterCandidates" data-attribute="type">
<option value="0">Candidate Type</option>
<option value="CA">CA</option>
<option value="CFA">CFA</option>
<option value="CFO">CFO</option>
<option value="CIMA">CIMA</option>
</select>
</div>
</div>
<div class="col-md-4">
<div class="form-group">
<select id="role" class="form-control filterCandidates" data-attribute="role">
<option value="0">Preferred Role</option>
<option value="Analyst">Analyst</option>
<option value="Associate">Associate</option>
<option value="CFO">CFO</option>
<option value="FD">FD</option>
<option value="FM">FM</option>
</select>
</div>
</div>
<div class="col-md-4">
<div class="form-group">
<select id="roleType" class="form-control filterCandidates" data-attribute="roleType">
<option value="0">Preferred Role Type</option>
<option value="Permanent">Permanent</option>
<option value="Contract/Interim">Contract/Interim</option>
<option value="Internship">Internship</option>
</select>
</div>
</div>
</div>

just to give you a rough idea as you have not provided any code.
<script>
var SelectedValues = $('#ddlSelect option:selected');
var NotSelectedValues $('#ddlSelect option:not(:selected)');
$(SelectedValues ).each(function () {
$("."+$(this).val()+"").show(); //show all those divs containing
//this class
});
$(NotSelectedValues ).each(function () {
$("."+$(this).val()+"").hide();//hide all those divs containing
//this class
});
</script>
This is a rough idea , The above script will show all of the divs containing the classes you have selected in your select2 with id "ddlSelect" and hide those which you have not selected.
you can put this into a function and call it on onchange event of ddlSelect or whatever and however you want it to.

get value from multi-select dropdown

I have a dropdown with two tiers. I want to get the option value from the item selected from the second dropdown list.
I have figured out how to do this for the first list, but I want to be able to grab the value for -any- list. In my jsfiddle, you'll see there's a value in console.log for any of the items in the Pie list when you click on them, but not for any of the items in the Trees or Cars lists when they're clicked.
I thought I could just give all of the selection lists the same ID, but apparently not. Any suggestions? I've done some searching, but haven't found what I'm looking for. I'm using D3 and jQuery already, so those are good, but plain javascript is also fine. Thanks!
jsfiddle is here.
<div class="ccms_form_element cfdiv_custom" id="indSelectors">
<label>Type:</label>
<select size="1" id="dropStyle" class=" validate['required']" title="" type="select" name="style">
<option value="">-Select-</option>
<option value="Pies">Pies</option>
<option value="Trees">Trees</option>
<option value="Cars">Cars</option>
</select>
<div class="clear"></div>
<div id="error-message-style"></div>
</div>
<div id="Pies" class="style-sub-1" style="display: none;" name="stylesub1">
<label>Pies</label>
<select id="inds">
<option value="">- Select -</option>
<option value="28">Apple</option>
<option value="3">Cherry</option>
<option value="44">Pumpkin</option>
</select>
</div>
<div id="Trees" class="style-sub-1" style="display: none;" name="stylesub1">
<label>Trees</label>
<select id="inds">
<option value="">- Select -</option>
<option value="38">Maple</option>
<option value="11">Oak</option>
<option value="14">Birch</option>
</select>
</div>
<div id="Cars" class="style-sub-1" style="display: none;" name="stylesub1">
<label>Cars</label>
<select id="inds">
<option value="">- Select -</option>
<option value="39">Mazda</option>
<option value="62">Ford</option>
<option value="25">Toyota</option>
</select>
</div>
<div class="clear"></div><div id="error-message-style-sub-1"></div>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="//code.jquery.com/jquery-1.10.2.js"></script>
<script>
$("#dropStyle").change(function () {
var targID = $(this).val();
$("div.style-sub-1").hide();
$('#' + targID).show();
})
d3.select('#inds')
.on("change", function () {
var sect = document.getElementById("inds");
var section = sect.options[sect.selectedIndex].value;
console.log("section:", section);
// do other stuff with the section name
});
</script>

Element IDs should be unique within the entire document and it is not a good practice to have same id for multiple elements.
what does document.getElementById("inds") or $("#inds") return? You will get the first element always.
Rather, use a class. Just change id="inds" to class="inds" and update code like below.
$('.inds')
.on("change", function () {
var section = $(this).val();
console.log("section:", section);
// do other stuff with the section name
});
Updated Fiddle

Try this jQuery Plugin
https://code.google.com/p/jquery-option-tree/
Demonstration:
http://kotowicz.net/jquery-option-tree/demo/demo.html

dynamic drop down how to show success using css (tic icon)

i have created dynamic drop down
loading second drop down using first selected value
now what i need is i need to display the following css(tic icon) next to first drop down
code
<span id="checkmark">
<div id="circle"></div>
<div id="stem"></div>
<div id="kick"></div>
</span>
the CSS is added in JSfiddleand full Jsfiddle
i need like this when second drop down is loaded i need output like this

You can make it like this http://jsfiddle.net/4yL0871f/2/
The CODE
$(function () {
$("#text-one").change(function () {
$("#checkmark").css({display: 'inline-block'});
$("#text-two").show();
$("#text-two").load("textdata/" + $(this).val() + ".txt");
});
});
HTML
<div id="page-wrap">
<h1>Pulls from text files</h1>
<div class="select-wrap">
<select id="text-one">
<option selected value="base">Please Select</option>
<option value="beverages">Beverages</option>
<option value="snacks">Snacks</option>
</select>
<span id="checkmark">
<div id="circle"></div>
<div id="stem"></div>
<div id="kick"></div>
</span>
</div>
<select id="text-two" style="display :none">
<option>Please choose from above</option>
</select>
</div>

show radio button based on the options from select box

I have select box and when the options change it shows another select box and it works fine however I want to have radio button show instead of selectbox. Can someone help me out?
.sub{display:none;}
<script type="text/javascript">
var $sub = $('select.sub');
$('select').first().change(function () {
$sub.hide();
if (this.selectedIndex > 0)
$sub.eq(this.selectedIndex - 1).show();
}).change();
</script>
<select><--!main select box--!>
<option value="">select</option>
<option> one</option>
<option> two </option>
</select>
<select class="sub">
<option> one 1</option>
<option> one 2</option
</select>
<select class="sub">
<option> two 1</option>
<option> two 2</option>
</select>
This is what I need instead of the above two selectboxes....
<div class="sub">
<input type="radio">one 1
<input type="radio">one 2
</div>
<div class="sub">
<input type="radio">two 1
<input type="radio">two 2
</div>

If this something that u want?
<select>
<option value="">select</option>
<option value="sub1"> one</option>
<option value="sub2"> two </option>
</select>
<div class="sub sub1">
<input type="radio">one 1
<input type="radio">one 2
</div>
<div class="sub sub2">
<input type="radio">two 1
<input type="radio">two 2
</div>
$('.sub').hide();
$('select').on('change', function(){
$('.' + this.value).show();
});
Working demo