I'm working on a small website and I currently have two dropdowns in my form, both are below:
<select name="classType" id="classType" required>
<option value="" disabled selected>Select Your Class Type</option>
<option value = "Beginner">Beginner</option>
<option value = "Intermediate">Intermediate</option>
<option value = "Advanced">Advanced</option>
</select>
<br/>
<select name="studentType" id="studentType" required>
<option value="" disabled selected>Select Your Student Type</option>
<option value = "lowerLevel">Lower Level</option>
<option value = "upperLevel">Upper Level</option>
</select>
<br/>
I've experimented with some javascript but only at a beginner level. I was wondering if there's a way to disable a specific value in the studentType dropdown.
So for example if i select "Beginner" in the first dropdown then the option for "UpperLevel" in the second dropdown should be disabled.
This is what I tried, but it was not working:
var dropdown = document.getElementById("classType");
dropdown.onchange = function(event){
if (dropdown.value == "Beginner") {
// .....
Any ideas?
Thanks!
You can achieve this by hooking an event handler to the change event of the first select which sets the disabled property of the relevant option in the second select based on the chosen option, something like this:
$('#classType').change(function() {
$('#studentType option[value="upperLevel"]').prop('disabled', $(this).val() == 'Beginner')
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select name="classType" id="classType" required>
<option value="" disabled="true" selected="true">Select Your Class Type</option>
<option value="Beginner">Beginner</option>
<option value="Intermediate">Intermediate</option>
<option value="Advanced">Advanced</option>
</select><br/>
<select name="studentType" id="studentType" required>
<option value="" disabled="true" selected="true">Select Your Student Type</option>
<option value="lowerLevel">Lower Level</option>
<option value="upperLevel">Upper Level</option>
</select><br/>
This should fit your needs:
http://codepen.io/themeler/pen/yOjWXB
<select name="classType" id="classType" required>
<option value="" disabled selected>Select Your Class Type</option>
<option value = "Beginner">Beginner</option>
<option value = "Intermediate">Intermediate</option>
<option value = "Advanced">Advanced</option>
</select>
<br/>
<select name="studentType" id="studentType" required>
<option value="" disabled selected>Select Your Student Type</option>
<option value="lowerLevel">Lower Level</option>
<option value="upperLevel">Upper Level</option>
</select>
<br/>
$(function () {
var $class = $('#classType'),
$student = $('#studentType');
$class.on('change', function () {
var $this = $(this),
$ul = $student.find('[value="upperLevel"]');
// clear value of student type on class type change
$student.find(':selected').prop('selected', false);
$student.find('option:first-child').prop('selected', true);
// lock / unlock position
if ($this.val() === 'Beginner') {
$ul.prop('disabled', true);
} else {
$ul.prop('disabled', false);
}
});
});
By jQuery:
$('#studentType option[value="upperLevel"]').attr('disabled','disabled');
Here is how I would do it, add a data-enabled tag to each option like this:
<select name="classType" id="classType" required>
<option value="" disabled selected>Select Your Class Type</option>
<option value = "Beginner" data-enabled="lowerLevel">Beginner</option>
<option value = "Intermediate" data-enabled="lowerLevel,upperLevel">Intermediate</option>
<option value = "Advanced" data-enabled="upperLevel">Advanced</option>
</select>
<br/>
<select name="studentType" id="studentType" required>
<option value="" disabled selected>Select Your Student Type</option>
<option value = "lowerLevel">Lower Level</option>
<option value = "upperLevel">Upper Level</option>
</select>
<br/>
And on change of the drop down, disable all options in the other drop down, then loop through and see if they're either in the enabled tag of the selected, or blank like this:
$('#classType').on('change', function(){
var allowed = $('#classType option:selected').attr('data-enabled').split(',');
$('#studentType option').attr('disabled','disabled');
$('#studentType option').each(function(){
if (allowed.indexOf($(this).val()) > -1 || !$(this).val()) {
$(this).removeAttr('disabled');
}
});
});
Related
i have this code:
$("#country").change(function() {
if ($(this).data('options') === undefined) {
$(this).data('options', $('#street option').clone());
}
var id = $(this).val();
$('#street').prop('disabled', false);
var options = $(this).data('options').filter('[class=' + id + ']');
$('#street').html(options);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="country" id="country">
<option disabled selected>Select ...</option>
<option value='1'>Country_one</option>
<option value='2'>Country_two</option>
<option value='3'>Country_three</option>
<option value='4'>Country_four</option>
</select>
<select disabled class="js-select2" name="street" id="street">
<option disabled selected>Select a Street ...</option>
<option class='1' value='1'>Street_one</option>
<option class='1' value='2'>Street_two</option>
<option class='1' value='3'>Street_three</option>
<option class='1' value='4'>Street_four</option>
<option class='2' value='5'>Street_five</option>
<option class='2' value='6'>Street_six</option>
<option class='3' value='7'>Street_seven</option>
<option class='3' value='8'>Street_eight</option>
<option class='3' value='9'>Street_nine</option>
<option class='3' value='10'>Street_ten</option>
<option>Street not found</option>
</select>
I need when change the option from country in the second dropdownlist stays the Select a Street ... option and when i select the Country_four in the seccond dropdownlist only appears the option Street not found
Added a class default to your select option "Select a street", and added to the .filter() so it will always be selected
Added if / else to check the value selected - If it's anything but 4; Rebuild the options, and Enable the select. If it's 4; Empty the options, Add "Street not found" option, and Disable the select. After both of these, we select the first option so we're always showing the right message first
$('#country').on('change', function() {
// Stores the intial Options into a Data-attribute
if ($(this).data('options') === undefined) {
$(this).data('options', $('#street option').clone());
}
if ($(this).val() !== '4') {
// Fetches the Options from data, and filters for match & default option
let id = $(this).val();
let newOptions = $(this).data('options').filter(`[class="${id}"], [class="default"]`);
$('#street')
.empty()
.append(newOptions)
.prop('disabled', false)
} else {
// Creates an Option, containing only text
let newOptions = $('<option></option>').text("Street not found");
$('#street')
.empty()
.append(newOptions)
.prop('disabled', true)
}
// Selects the first Option in the Select
$('#street')[0].selectedIndex = 0
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="country" id="country">
<option disabled selected>Select ...</option>
<option value='1'>Country_one</option>
<option value='2'>Country_two</option>
<option value='3'>Country_three</option>
<option value='4'>Country_four</option>
</select>
<select disabled class="js-select2" name="street" id="street">
<option class="default" disabled selected>Select a Street ...</option>
<option class='1' value='1'>Street_one</option>
<option class='1' value='2'>Street_two</option>
<option class='1' value='3'>Street_three</option>
<option class='1' value='4'>Street_four</option>
<option class='2' value='5'>Street_five</option>
<option class='2' value='6'>Street_six</option>
<option class='3' value='7'>Street_seven</option>
<option class='3' value='8'>Street_eight</option>
<option class='3' value='9'>Street_nine</option>
<option class='3' value='10'>Street_ten</option>
<option>Street not found</option>
</select>
Is it possible to hide options in a select/dropdown with jQuery based on the user's selection from a previous dropdown e.g:
If user is 8 (Age Select/Dropdown), and chooses subject English (Subject Select/Dropdown) then hide Location 2 from (Locations dropdown)?
<select name="age">
<option value="8">8</div>
<option value="9">9</div>
<option value="10">10</div>
<option value="11">11</div>
</select>
<select name="subject">
<option value="eng">English</div>
<option value="maths">Maths</div>
<option value="science">Science</div>
</select>
<select name="subject">
<option value="loc-1">Location One</div>
<option value="loc-2">Location Two</div>
<option value="loc-3">Location Three</div>
</select>
Thank you!
you just need to add change function to your drop-down and according to your requirement you need to add your logic. see below example.
$(document).ready(function(){
$("#age").change(function(){
hideOption();
})
$("#subject").change(function(){
hideOption();
})
})
function hideOption(){
var age=$("#age").val();
var subject=$("#subject").val();
if(age==8 && subject=="Maths"){
$("#location [value='Location Two']").hide();
}
else{
$("#location [value='Location Two']").show();
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="age" id='age'>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
</select>
<select name="subject" id='subject'>
<option value="English">English</option>
<option value="Maths">Maths</option>
<option value="Science">Science</option>
</select>
<select name="Location" id='location'>
<option value="Location One">Location One</option>
<option value="Location Two">Location Two</option>
<option value="Location Three">Location Three</option>
</select>
You can do something like below
$(document).on('change', '.age', function(e){
var val = $(this).val();
var subject = $('.subject').find(":selected").val();
if(val == 8 && subject == 'English' ){
$('.location option[value="Two"]').hide();
} else {
$('.location option[value="Two"]').show();
}
})
$(document).on('change', '.subject', function(e){
var age = $('.age').find(":selected").val();
var val = $(this).val();
if(age == 8 && val == 'English' ){
$('.location option[value="Two"]').hide();
} else {
$('.location option[value="Two"]').show();
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="age" class="age">
<option >select</8>
<option value="8">8</8>
<option value="9">9</8>
<option value="10">10</8>
<option value="11">11</8>
</select>
<select name="subject" class="subject">
<option value="English">English</8>
<option value="Maths">Maths</8>
<option value="Science">Science</8>
</select>
<select name="location" class="location">
<option value="One">Location One</8>
<option value="Two">Location Two</8>
<option value="Three">Location Three</8>
</select>
With jQuery you can use .hide() and .show() to toggle element visibility. First however, you can check if the value of a select (for example age) was changed. Based on the logic you want to have, you can for example check what the value of the change was and do something if it matches a condition.
For example:
$( "#age-select" ).change(function() {
var value = $(this).val();
if(value == 8) {
$("#location-two").hide();
} else {
$("#location-two").show();
}
});
However, notice that I added an id for the "Location Two" option ("location-two") and for the age select element. Also, to make this work properly, you have to fix the values so that they're not all 8 and fix the closing tags of the elements (not ).
this is my html,
I have two select if one select contains a value, then the required attribute is deleted,and the third select must be required
<select class="form-control costume-{{$stud}}" name="subject-{{$stud}}[]" id="sub1" disabled="disabled">
<option value="" selected> --------Select-------- </option>
<option value="math,indonesia">Math (Indonesia)</option>
<option value="math,english">Math (English)</option>
</select>
<select class="form-control costume-{{$stud}}" name="subject-{{$stud}}[]" id="sub2" disabled="disabled">
<option value="" selected> --------Select-------- </option>
<option value="science,indonesia">Science (Indonesia)</option>
<option value="science,english">Science (English)</option>
</select>
<select class="form-control select-long costume-{{$stud}}" name="location_id[{{$stud}}]" disabled="disabled">
<option value="" selected> -----Select------</option>
#foreach ($venue as $row)
<option value="{{$row['location_id']}}">{{$row['location_name']}}</option>
#endforeach
</select>
<input type="checkbox" id="enableSelect-{{$stud}}" onclick="getCheck({{$stud}});">
and this is my jquery
function getCheck(id){
var e = document.getElementById("sub1");
var sub1 = e.options[e.selectedIndex].value;
console.log(sub1);
if($('#enableSelect-' +id).is(':checked')) {
$('.costume-' +id).prop("disabled", false);
$('.costume-' +id).prop("required", true);
$('.visibility').show();
}else{
$('.costume-' +id).prop("disabled", true);
$('.costume-' +id).prop("required", false);
$('.visibility').hide();
}
}
Your JS doesn't correspond to the HTML, the selectors don't match up.
I would check form values and set the required like this :-
$('select').on('change', function() {
if($(this).val() != ""){
$('select').prop('required',false);
}
});
This would work with your HTML as by default the select value is ""
You would also need required="true" on the and your default option should be something like this -
<option value="" disabled selected>Select your option</option>
on the select elements by default.
<span id="s_home_country">
<select name="Home Country" id="home_country">
<option value="Select one" selected="selected">Select one</option>
<option value="h1">Home1</option>
<option value="h2">Home2</option>
<option value="h3">Home3</option>
<option value="h4">Home4</option>
</select>
</span>
and I have another data that i want to incorporate, when Home1 is selected, I want this to show 21-dec into another textbox automatically. and so on..
var Home_country = [
"21-Dec",
"01-Jan",
"01-Jan",
"01-Jan",
];
You could use an object and an event listener.
var home_country = {
"h1":"21-Dec",
"h2":"01-Jan",
"h3":"01-Jan",
"h4":"01-Jan",
};
var selectbox = document.getElementById('home_country');
var textbox = document.getElementById('home_country_date');
selectbox.addEventListener('change', function(e){
textbox.value = home_country[this.value]
})
<span id="s_home_country">
<select name="Home Country" id="home_country">
<option value="Select one" selected="selected">Select one</option>
<option value="h1">Home1</option>
<option value="h2">Home2</option>
<option value="h3">Home3</option>
<option value="h4">Home4</option>
</select>
</span>
<input type="text" id="home_country_date">
Please find below snippet just add another attribute data-attr1 and on change of select list find selected option and get its attribute with name data-attr1 and pass attribute's value to textbox
$("#home_country").on("change",function(){
$(".txtvalue").val($(this).find("option:selected").attr("data-attr1"));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<span id="s_home_country">
<select name="Home Country" id="home_country">
<option value="Select one" selected="selected">Select one</option>
<option data-attr1="21-Dec" value="h1">Home1</option>
<option data-attr1="01-Dec" value="h2">Home2</option>
<option data-attr1="02-Dec" value="h3">Home3</option>
<option data-attr1="03-Dec" value="h4">Home4</option>
</select>
</span>
<input type="text" class="txtvalue" />
Add an event listener to your select input which outputs the relevant value from your array when an option is selected:
var el = document.getElementById('home_country');
var textbox = document.getElementById('your_textbox_el');
el.addEventListener('change', function(e){
if (e.target.value == 'h1') {
textbox.value = Home_country[0];
} else if (e.target.value == 'some other condition') {
// do something else
}
}
Unless I'm misunderstanding you, you can just put the values of the Home_country array inside the value properties of the options like so:
<span id="s_home_country">
<select name="Home Country" id="home_country">
<option value="Select one" selected="selected">Select one</option>
<option value="21-Dec">Home1</option>
<option value="01-Jan">Home2</option>
<option value="01-Jan">Home3</option>
<option value="01-Jan">Home4</option>
</select>
</span>
Now, when you do get the value of your select element, it will be the value in the array that you gave.
HTML
<select id="country" >
<option value=""></option>
<option value="india">India</option>
<option value="australia">Australia</option>
<option value="turkey">Turkey</option>
</select>
JS
var a = document.getElementById('country');
b.addEventListener('select',function () {alert(this.value);} ,false);
I want to show the selected value in an alert box when the user selects an option from the list.
Use change event as select event is invoked when some text is selected in an element.
var a = document.getElementById('country');
a.addEventListener('change', function() {
alert(this.value);
}, false);
<select id="country">
<option value="" disabled selected>Please select your country</option>
<option value="India">India</option>
<option value="Australia">Australia</option>
<option value="Turkey">Turkey</option>
</select>