Develop Reference

Populated Select with html + JS

I have this Fiddle : https://jsfiddle.net/Ardee12/tL643rjq/3/
My problem is, I always get the same options at the third select from second select (vice versa), after I select an option from the first one. I need to stick for their own option (second and third select), but still have the populated function from their "rel" attribute. Can anyone please help me?
$(document).ready(function () {
$(".mainSelect").change(function() {
if ($(this).data('options') === undefined) {
$(this).data('options', $('.kidSelect option').clone());
}
var rel = this.options[this.selectedIndex].getAttribute('rel');
var options = $(this).data('options').filter('[rel=' + rel + ']');
$('.kidSelect').html(options);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<select class="mainSelect">
<option rel="1">Fruit</option>
<option rel="2">Animal</option>
<option rel="3">Bird</option>
<option rel="4">Car</option>
</select>
<select class="kidSelect">
<option rel="1">Banana</option>
<option rel="1">Apple</option>
<option rel="1">Orange</option>
<option rel="2">Wolf</option>
<option rel="2">Fox</option>
<option rel="2">Bear</option>
<option rel="3">Eagle</option>
<option rel="3">Hawk</option>
<option rel="4">BWM</option>
</select>
<select class="kidSelect">
<option rel="1">AAAAA</option>
<option rel="2">BBBBB</option>
<option rel="3">CCCCC</option>
</select>

You need to treat each of the kidSelect individually. Loop through each of them at the beginning and store a clone of their own options in each instance.
Then when you change main select, filter each set separately
// store a clone of each kidSelect options on page load
$('.kidSelect').each(function() {
$(this).data('options', $(this).children().clone());
});
$(".mainSelect").change(function() {
var rel = this.options[this.selectedIndex].getAttribute('rel');
// filter each kids options and set in place
$('.kidSelect').html(function() {
return $(this).data('options').filter('[rel=' + rel + ']').clone();
});
// trigger the change on page load also to do initial filtering
}).change();
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<select class="mainSelect">
<option rel="1">Fruit</option>
<option rel="2">Animal</option>
<option rel="3">Bird</option>
<option rel="4">Car</option>
</select>
<select class="kidSelect">
<option rel="1">Banana</option>
<option rel="1">Apple</option>
<option rel="1">Orange</option>
<option rel="2">Wolf</option>
<option rel="2">Fox</option>
<option rel="2">Bear</option>
<option rel="3">Eagle</option>
<option rel="3">Hawk</option>
<option rel="4">BWM</option>
</select>
<select class="kidSelect">
<option rel="1">AAAAA</option>
<option rel="2">BBBBB</option>
<option rel="3">CCCCC</option>
</select>

I'm not entirely sure what you're trying to do but here is a guess.
I think you only want to effect the second select with the changes. For that you need to adjust your selector. It currently selects both selects.
$(document).ready(function () {
$(".mainSelect").change(function() {
if ($(this).data('options') === undefined) {
$(this).data('options', $('.js-kidSelect option').clone());
}
var rel = this.options[this.selectedIndex].getAttribute('rel');
var options = $(this).data('options').filter('[rel=' + rel + ']');
$('.js-kidSelect').html(options);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<select class="mainSelect">
<option rel="1">Fruit</option>
<option rel="2">Animal</option>
<option rel="3">Bird</option>
<option rel="4">Car</option>
</select>
<select class="kidSelect js-kidSelect">
<option rel="1">Banana</option>
<option rel="1">Apple</option>
<option rel="1">Orange</option>
<option rel="2">Wolf</option>
<option rel="2">Fox</option>
<option rel="2">Bear</option>
<option rel="3">Eagle</option>
<option rel="3">Hawk</option>
<option rel="4">BWM</option>
</select>
<select class="kidSelect">
<option rel="1">AAAAA</option>
<option rel="2">BBBBB</option>
<option rel="3">CCCCC</option>
</select>

submit any of the text of the selected option using html

When the form is submit I can only get the number assigned to the value. I want to submit any of the texts that is between the select options.
For example, when I select Bird and Dove I want to receive Bird and Dove not 3 and 3
$("#select1").change(function() {
if ($(this).data('options') === undefined) {
/*Taking an array of all options-2 and kind of embedding it on the select1*/
$(this).data('options', $('#select2 option').clone());
}
var id = $(this).val();
var options = $(this).data('options').filter('[value=' + id + ']');
$('#select2').html(options);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<form method="POST" action="process.php">
<select name="select1" id="select1">
<option value="0">-Select-</option>
<option value="1">Cars</option>
<option value="2">Phones</option>
<option value="3">Birds</option>
</select>
<select name="select2" id="select2">
<option value="0">-Select-</option>
<option value="1">BMW</option>
<option value="1">Benz</option>
<option value="1">Toyota</option>
<option value="2">iPhone</option>
<option value="2">Samsung</option>
<option value="2">Motorola</option>
<option value="3">Eagle</option>
<option value="3">Hawk</option>
<option value="3">Dove<option>
</select><br>
<label>Postal code</label>
<input type="number" name="zipcode" placeholder="postal code">
<button>Search</button>
</form>

When the form is submit the value of the selected option is sent. The problem is because you're using this value to match the child option elements to the parent.
To fix this you need to use value as it was intended, ie. to hold the value you want to send to the server when the form is submit, and use a different method for grouping the option elements between select. I'd suggest using a data attribute for this instead, like this:
$("#select1").change(function() {
if (!$(this).data('options')) {
$(this).data('options', $('#select2 option').clone());
}
var category = $(this).find('option:selected').data('category');
var options = $(this).data('options').filter(function() {
return $(this).data('category') == category;
});
$('#select2').html(options);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form method="POST" action="process.php">
<select name="select1" id="select1">
<option data-category="0" value="">-Select-</option>
<option data-category="1" value="Cars">Cars</option>
<option data-category="2" value="Phones">Phones</option>
<option data-category="3" value="Birds">Birds</option>
</select>
<select name="select2" id="select2">
<option data-category="0" value="Cars">-Select-</option>
<option data-category="1" value="BMW">BMW</option>
<option data-category="1" value="Benz">Benz</option>
<option data-category="1" value="Toyota">Toyota</option>
<option data-category="2" value="iPhone">iPhone</option>
<option data-category="2" value="Samsung">Samsung</option>
<option data-category="2" value="Motorola">Motorola</option>
<option data-category="3" value="Eagle">Eagle</option>
<option data-category="3" value="Hawk">Hawk</option>
<option data-category="3" value="Dove">Dove</option> <!-- note I fixed your typo here, missing / -->
</select><br>
</form>

Just change the value from number to text.
example
<option value="Hawk">Hawk</option>
<option value="Dove">Dove<option>
Done!

Replace 'value' with 'data-filter' in example

guys,
here is an example of dependent select options.
$('#city').change(function() {
$('#street option').hide();
$('#street option[value="' + $(this).val() + '"]').show();
// add this code to select 1'st of streets automaticaly
// when city changed
if ($('#street option[value="' + $(this).val() + '"]').length) {
$('#street option[value="' + $(this).val() + '"]').first().prop('selected', true);
}
// in case if there's no corresponding street:
// reset select element
else {
$('#street').val('');
};
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="city" name="city">
<option value="0">Select City</option>
<option value="1">Manchester</option>
<option value="2">Leicester</option>
<option value="3">Londra</option>
</select>
<select id="street" name="street">
<option value="0">Select Street</option>
<option value="1">Street 1</option>
<option value="1">Street 2</option>
<option value="1">Street 3</option>
<option value="2">Street 4</option>
<option value="2">Street 5</option>
<option value="2">Street 6</option>
<option value="1200">Street 7</option>
<option value="1200">Street 8</option>
<option value="1200">Street 9</option>
</select>
Everything is fine with, but in need to replace value-based filtering with data attributes based, like so:
<option value="1">Street 1</option> => <option data-filter="1" value="">Street 1</option>
Your help is a highly appreciated.

Is that what you wish?
To use data-filter instead of value?
Ok, the twist here is that you have to look for the selected option... Since the value isn't tied to the select anymore. That's all.
$('#city').change(function() {
var cityFilter = $(this).find("option:selected").data("filter");
$('#street option').hide();
$('#street option[data-filter="' + cityFilter + '"]').show();
// add this code to select 1'st of streets automaticaly
// when city changed
if ($('#street option[data-filter="' + cityFilter + '"]').length) {
$('#street option[data-filter="' + cityFilter + '"]').first().prop('selected', true);
}
// in case if there's no corresponding street:
// reset select element
else {
$('#street').val('');
};
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="city" name="city">
<option value="" data-filter="0">Select City</option>
<option value="" data-filter="1">Manchester</option>
<option value="" data-filter="2">Leicester</option>
<option value="" data-filter="3">Londra</option>
</select>
<select id="street" name="street">
<option value="" data-filter="0">Select Street</option>
<option value="" data-filter="1">Street 1</option>
<option value="" data-filter="1">Street 2</option>
<option value="" data-filter="1">Street 3</option>
<option value="" data-filter="2">Street 4</option>
<option value="" data-filter="2">Street 5</option>
<option value="" data-filter="2">Street 6</option>
<option value="" data-filter="1200">Street 7</option>
<option value="" data-filter="1200">Street 8</option>
<option value="" data-filter="1200">Street 9</option>
</select>
I also "reduced" the amount of jQuery lookups... using the cityFilter variable.
Feel free for questions. ;)

Your need to use
$(this).find(":selected").attr('data-filter')
and
$(this).find(":selected").attr('data-filter') + '"]').first().prop('selected', true);
So instead of targeting the 'value' attribute you switch to the 'data-attributeName'.
Update: Here is a working example based on your pen.

Open a page when Mulitple Options Selected

I have multiple select box in Html, I need to validate the options select then open a new page taking me to a page where the teacher's profile and the school selected, I need to create a page for each possible answer.
Select Teacher to Study with and School
<select id="school">
<option value="Once" selected="">One</option>
<option value="Twice">Two</option>
<option value="Three">Three</option>
<option value="Four">Four</option>
</select>
<select id="teacher">
<option value="Once" selected="">Sam</option>
<option value="Twice">Micheal</option>
<option value="Three">Manny</option>
<option value="Four">Jenny</option>
</select>

Use this with jQuery
$(function() {
$('#school, #teacher').change(function() {
//You can validate here if you want
var myWindow = window.open("http://yourserver.com/myapp/" + $("#school").val() + "/" + $("#teacher").val(), "MsgWindow", "width=800, height=600");
});
});

Add a onchnge event
HTML:
<select id="school">
<option value="Once" selected="" onchange="toggle();">One</option>
<option value="Twice">Two</option>
<option value="Three">Three</option>
<option value="Four">Four</option>
</select>
<select id="teacher">
<option value="Once" selected="" onchange="toggle();">Sam</option>
<option value="Twice">Micheal</option>
<option value="Three">Manny</option>
<option value="Four">Jenny</option>
</select>
JS:
function toggle(){
// to do : your logic goes here
// redirect to new page
}

you can use better approach
var url = "http://yourserver.com/myapp/";
$(function() {
$('#school, #teacher').on("change",function() {
window.open( url + $("#school").val() + "/" + $("#teacher").val());
});
});

jQuery remove SELECT options based on another SELECT selected (Need support for all browsers)

Say I have this dropdown:
<select id="theOptions1">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
I want it so that when the user selects 1, this is the thing that the user can choose for dropdown 2:
<select id="theOptions2">
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</select>
Or if the user selects 2:
<select id="theOptions2">
<option value="a">a</option>
<option value="b">b</option>
</select>
Or if the user selects 3:
<select id="theOptions2">
<option value="b">b</option>
<option value="c">c</option>
</select>
I tried the code posted here:
jQuery disable SELECT options based on Radio selected (Need support for all browsers)
But it doesn't work for selects.
Please help!
Thank you!
UPDATE:
I really like the answer Paolo Bergantino had on:
jQuery disable SELECT options based on Radio selected (Need support for all browsers)
Is there anyway to modify this to work with selects instead of radio buttons?
jQuery.fn.filterOn = function(radio, values) {
return this.each(function() {
var select = this;
var options = [];
$(select).find('option').each(function() {
options.push({value: $(this).val(), text: $(this).text()});
});
$(select).data('options', options);
$(radio).click(function() {
var options = $(select).empty().data('options');
var haystack = values[$(this).attr('id')];
$.each(options, function(i) {
var option = options[i];
if($.inArray(option.value, haystack) !== -1) {
$(select).append(
$('<option>').text(option.text).val(option.value)
);
}
});
});
});
};

This works (tested in Safari 4.0.1, FF 3.0.13):
$(document).ready(function() {
//copy the second select, so we can easily reset it
var selectClone = $('#theOptions2').clone();
$('#theOptions1').change(function() {
var val = parseInt($(this).val());
//reset the second select on each change
$('#theOptions2').html(selectClone.html())
switch(val) {
//if 2 is selected remove C
case 2 : $('#theOptions2').find('option:contains(c)').remove();break;
//if 3 is selected remove A
case 3 : $('#theOptions2').find('option:contains(a)').remove();break;
}
});
});
And the beautiful UI:
<select id="theOptions1">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<br />
<select id="theOptions2">
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</select>

You can add classes to your <option>s to store which go with each value of #theOptions1:
<select id="theOptions2">
<option value="a" class="option-1 option-2">a</option>
<option value="b" class="option-1 option-2 option-3">b</option>
<option value="c" class="option-1 option-3">c</option>
</select>
then do this:
$(function() {
var allOptions = $('#theOptions2 option').clone();
$('#theOptions1').change(function() {
var val = $(this).val();
$('#theOptions2').html(allOptions.filter('.option-' + val));
});
});

For the record you can NOT remove options in a select list in Internet Explorer.

try this. this will definitely work
$(document).ready(function () {
var oldValue;
var oldText;
var className = '.ddl';
$(className)
.focus(function () {
oldValue = this.value;
oldText = $(this).find('option:selected').text();
})
.change(function () {
var newSelectedValue = $(this).val();
if (newSelectedValue != "") {
$('.ddl').not(this).find('option[value="' + newSelectedValue + '"]').remove();
}
if ($(className).not(this).find('option[value="' + oldValue + '"]').length == 0) { // NOT EXIST
$(className).not(this).append('<option value=' + oldValue + '>' + oldText + '</option>');
}
$(this).blur();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
<form action="/Home/Ex2" method="post">
<select class="ddl" id="A1" name="A1">
<option value="">Select</option>
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
<hr />
<select class="ddl" id="A2" name="A2">
<option value="">Select</option>
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
<hr />
<select class="ddl" id="A3" name="A3">
<option value="">Select</option>
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
<hr />
<select class="ddl" id="A4" name="A4">
<option value="">Select</option>
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
<hr />
<input type="submit" name="submit" value="Save Data" id="btnSubmit" />
</form>

Actually, using the code below will remove a dropdown option just fine in IE, as long as it is not the selected option (it will not work on "a" without deselecting that option first):
var dropDownField = $('#theOptions2');
dropDownField.children('option:contains("b")').remove();
You just run this to remove whatever option you want to remove under a conditional statement with the first group (theOptions1) - that if one of those is selected, you run these lines:
var dropDownField = $('#theOptions2');
if ($('#theOptions1').val() == "2") {
dropDownField.children('option:contains("c")').remove();
}
if ($('#theOptions1').val() == "3") {
$("#theOptions2 :selected").removeAttr("selected");
$('#theOptions2').val('b');
dropDownField.children('option:contains("a")').remove();
}
-Tom