Develop Reference

Open Another Input Text when the user selects an option

I am a newbie and I have this project where the user should have the option of custom input if the listed options are not in dropdown.
HTML
<div class="form-group">
<label class="col-sm-2 col-form-label">Select Page Size</label>
<select name = 'pageSelector' class="col-sm-3">
<option value ="">Select Page Size</option>
<option value ="84.1|118.9">A0</option>
<option value = "59.4|84.1">A1</option>
<option value = "7.4|10.5">A7</option>
<option value = "custom">Select Custom</option>
</select>
</div>
PHP
if(isset($_POST["pageSelector"]))
{
$result = $_POST['pageSelector'];
if($result == "")
{
echo "<script>alert('Please select the Page')</script>";
}
$result_explode = explode('|', $result);
$width_page = $result_explode[0];
$height_page = $result_explode[1];
// Converting the string variables to integer
$width_plate=(double)$width_plate;
$height_plate=(double)$height_plate;
$width_page=(double)$width_page;
$height_page=(double)$height_page;
// To calculate the number of pages that can be print with one selected plate
$calculated_width = $width_plate/$width_page;
$calculated_height = $height_plate/$height_page;
$print_include = (int)$calculated_height*(int)$calculated_width;
echo "<div class='h1'>Number of Prints in one plate ".$print_include." prints</div> ";
}
I would like if the user selects the custom option then a input text should appear on the screen.

If user selected a custom option then you can give him an input.
let selectEl = document.getElementById('select-list');
selectEl.addEventListener('change', (e) => {
if (e.target.value == 'custom') {
document.getElementById('txt-custom').style.display = 'block';
} else {
document.getElementById('txt-custom').style.display = 'none';
}
});
#txt-custom {
display: none;
}
<select id="select-list">
<option value="">Select an option</option>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="custom">Custom</option>
</select>
<input type="text" id="txt-custom" name="custom-value" />

var pageSelector = document.getElementById('pageSelector');
var customInput = document.getElementById('customInput');
pageSelector.addEventListener('change', function(){
if(this.value == "custom") {
customInput.classList.remove('hide');
} else {
customInput.classList.add('hide');
}
})
.hide {
width: 0;
height: 0;
opacity: 0;
}
<div class="form-group">
<label class="col-sm-2 col-form-label">Select Page Size</label>
<select name = 'pageSelector' class="col-sm-3 page" id="pageSelector">
<option value ="">Select Page Size</option>
<option value ="84.1|118.9">A0</option>
<option value = "59.4|84.1">A1</option>
<option value = "7.4|10.5">A7</option>
<option value = "custom">Select Custom</option>
</select>
<input type="text" class="hide" placeholder="Custom Selector" name="custom" id="customInput">
</div>

Demo Code :
First you should have input with style="display:none" and with jQuery
jQuery(document).ready(function() {
jQuery("#selectId").change(function() {
if (jQuery(this).val() === 'custom'){
jQuery('input[name=other_input]').show();
} else {
jQuery('input[name=other_input]').hide();
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<select name = 'pageSelector' class="col-sm-3" id="selectId" >
<option value ="">Select Page Size</option>
<option value ="84.1|118.9">A0</option>
<option value = "59.4|84.1">A1</option>
<option value = "7.4|10.5">A7</option>
<option value = "custom">Select Custom</option>
</select>
<br><br><br>
<input type="text" name="other_input" style="display:none" />

Angular Version
Angular CLI: 13.0.3
Node: 16.15.0
Package Manager: npm 8.5.5
In .html File
**<div class="col-md-6">
<label class="form-label">Attendence Type</label>
<select (change)="type($event)" class="form-select" aria-label="Default select example" >
<option selected value="P">Present</option>
<option value="A">Absent</option>
<option value="PL">Paid Leave</option>
<option value="UL">Unpaid Leave</option>
</select>
</div>**
I want to Show this input after select paid leave
**<div *ngIf="plFlag" class="col-md-6">
<label class="form-label">Leave Type</label>
<select class="form-select" aria-label="Default select example">
<option selected disabled>Leave Type</option>
<option value="CL">Causel Leave</option>
<option value="SL">Seek Leave</option>
</select>
</div>**
and in .ts File
**type(event: any) {
console.log(event.target.value);
if (event.target.value == "PL") {
this.plFlag = true;
}
else {
this.plFlag = false;
}
}**

How to disable & Enable input element with html selector option

I want to make input element name="sellprice" enable if i select value sell option else input element will be disabled.
<select id="selling" name="selling">
<option value="">-- Choose --</option>
<option value="free">Open Source</option>
<option value="sell">I Wan't To Sell</option>
</select>
<div class="kd-title-show md-radio-inline">
<label for="4">Price :</label>
<input id="4" type="textbox" class="form-title" name="sellprice" placeholder="Min-$5 to Max-$100 " disabled>
</div>
Here is my Javascript Code, I have try this below code but it's not working.
$(document).ready(function(){
$("select[name='selling']").on('change',function(){
if($(this).val()== "free"){
$("input[name='sellprice']").prop("disabled",false);
}else{
$("input[name='sellprice']").prop("disabled",true);
}
});
});

Please have a look I hope it's useful for you.
$(document).ready(function(){
$("select[name='selling']").on('change',function(){
if($(this).val()== "sell"){
$("input[name='sellprice']").prop("disabled",false);
}else{
$("input[name='sellprice']").prop("disabled",true);
}
});
});

I want to make input element name="sellprice" enable
- that is not an input, it's a dropdown
If i select value sell option else input element will be disabled. - from your current explanation i understand that you want to disable the drop-down if the third option is selected
If the third option is selected, the drop-down will be disabled.
$(document).ready(function() {
$('#mounth').change(function() {
if( $(this).val() == "sell") {
$('#mounth').prop( "disabled", true );
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.1/jquery.min.js"></script>
<select id="mounth" name="selling">
<option value="">-- Choose --</option>
<option value="free">Open Source</option>
<option value="sell">I Don't Want To Sell</option>
</select>
<div class="kd-title-show md-radio-inline">
<label>Price :</label>
<input id="textInput" type="textbox" class="form-title" name="sellprice" placeholder="Min-$5 to Max-$100 " disabled>
</div>
If you want to disable the input if the third option is selected, the following code will do it
$(document).ready(function() {
$('#mounth').change(function() {
if( $(this).val() == "sell") {
$('#textInput').prop( "disabled", true );
} else {
$('#textInput').prop( "disabled", false );
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.1/jquery.min.js"></script>
<select id="mounth" name="selling">
<option value="" selected="selected">-- Choose --</option>
<option value="free">Open Source</option>
<option value="sell">I Don't want To Sell</option>
</select>
<div class="kd-title-show md-radio-inline">
<label>Price :</label>
<input id="textInput" type="textbox" class="form-title" name="sellprice" placeholder="Min-$5 to Max-$100 ">
</div>

<select id="mounth" onchange="myOnChangeFunction()" name="selling">
<option value="">-- Choose --</option>
<option value="free">Open Source</option>
<option value="sell">I Wan't To Sell</option>
</select>
<div class="kd-title-show md-radio-inline">
<label for="4">Price :</label>
<input id="4" type="textbox" class="form-title" name="sellprice" placeholder="Min-$5 to Max-$100 " disabled>
</div>
in js
<script>
function myOnChangeFunction() {
var val = document.getElementById("mounth").value;
if(val === "sell"){
document.getElementById('4').disabled = false;
}else{
document.getElementById('4').disabled = true;
}
}
</script>

page is still reloading with event.preventDefault();

if the select drop-down menu has value of NULL, it should stop the page from loading. The jQuery works alerting the user of the issue, however the page still continues to the next page. Any assistance would be superb. Thanks
Luke
<fieldset class="form-group">
<label for="question-1">1. What age group are you?</label> <br>
<select class="drop-down" id = "ageChoice">
<option value="">Please Select</option>
<option value="16minus">16 or below</option>
<option value="16-18">16 to 18</option>
<option value="19-25">19 to 25</option>
<option value="26-34">26 to 34</option>
<option value="35-42">35 to 42</option>
<option value="43-50">43 to 50</option>
<option value="51-60">51 to 60</option>
<option value="61plus">61+</option>
</select>
</fieldset>
<input class="btn btn-primary" type="button" id= "next" value="Next" onClick="location.href='first-test.html' ">
$("#next").click(function () {
var age = $('#ageChoice');
if (age.val() === '') {
event.preventDefault();
alert("Please select your age group, thank you.");
}
else
return;
});

Ok, so because you have two click handlers, the event is being processed twice. The 'Default' you are trying to prevent is not the onClick="location.href='first-test.html' . That is being processed after your jQuery click function. So we take the onClick out of the html. and add the functionality to the jQuery click event (we could do it either way, but becuase you already have most of the code set up already we'll do it this way)
Here is the reworked code:
<fieldset class="form-group">
<label for="question-1">1. What age group are you?</label> <br>
<select class="drop-down" id = "ageChoice">
<option value="">Please Select</option>
<option value="16minus">16 or below</option>
<option value="16-18">16 to 18</option>
<option value="19-25">19 to 25</option>
<option value="26-34">26 to 34</option>
<option value="35-42">35 to 42</option>
<option value="43-50">43 to 50</option>
<option value="51-60">51 to 60</option>
<option value="61plus">61+</option>
</select>
</fieldset>
<input class="btn btn-primary" type="button" id= "next" value="Next">
and the jquery:
$("#next").on('click', function (event) {
var age = $('#ageChoice');
if (age.val() === '') {
alert("Please select your age group, thank you.");
} else {
location.href='first-test.html'
}
});

Drop down text input option

I want a drop down element where user can select from available options or select enter value option which in turn allows to enter value.
I specifically want that user can enter value only when they select "Enter a value " option.
Here is what I have tried so far.
HTML-
<div class="ginput_container">
<select name="input_4" id="input_1_4" class="medium gfield_select" tabindex="15">
<option value="0">None</option>
<option value="155">1-70</option>
<option value="185">71-250</option>
<option value="*">Enter value</option>
</select>
<input type="text" value="None" class="holder" >
</div>
JavaScript-
jQuery(".gfield_select").change(function() {
var val = jQuery(this).val();
var enter = jQuery(this).parent().find('option:selected').text();
var x = jQuery(this).parent();
if (enter ==="Enter a value" || enter === "Enter value"){
var holder = x.find('.holder');
holder.val('');
holder.prop('disabled',false);
holder.focus();
} else {
x.find('.holder').val(x.find('option:selected').text());
}
});
JS fiddle
however it wont work properly if i click the enter value option again.

I think there are many plugins that do what you want but if you want to create your own, it's a basic and simple solution.
You can create a select and a textbox with display:none like this:
<select id="ddlDropDownList">
<option value="1">Item 1</option>
<option value="2">Item 2</option>
<option value="3">Item 3</option>
<option value="-1">Enter Value</option>
</select>
<input id="txtTextBox" type="text" />
<style>
#txtTextBox{
display:none;
}
</style>
then try this JQuery:
$("#ddlDropDownList").change(function(){
if($(this).val() == '-1'){
$("#txtTextBox").fadeIn();
}else{
$("#txtTextBox").fadeOut();
}
});
Check JSFiddle Demo

I have forked your JSFiddle to http://jsfiddle.net/pwdst/4ymtmf7b/1/ which I hope does what you wanted to achieve.
HTML-
<div class="ginput_container">
<label for="input_1_4">Select option</label>
<select class="medium gfield_select" id="input_1_4" name="input_4" tabindex="15">
<option value="0">None</option>
<option value="155">1-70</option>
<option value="185">71-250</option>
<option value="*">Enter value</option>
</select>
<div>
<label class="hidden-label" for="input_1_4_other">Other value</label>
<input class="holder" id="input_1_4_other" disabled="disabled" name="input_1_4_other" placeholder="None" type="text" />
</div>
</div>
JavaScript-
jQuery(".gfield_select").change(function() {
var $this = jQuery(this);
var val = $this.val();
var holder = $this.parent().find('.holder');
if (val === "*"){
holder.val('');
holder.removeAttr('disabled');
holder.focus();
} else {
holder.val(this.options[this.selectedIndex].text);
holder.attr('disabled', 'disabled');
}
});
When the "Enter value" option is chosen then the input box is enabled, value set to an empty string, and it is focused. If another option is chosen then the text input is disabled again, and the text value from the select list is used.

Thanks guys
I guess i have found my answer
HTML-
<div class="ginput_container">
<select name="input_4" id="input_1_4" class="medium gfield_select" tabindex="15">
<option value="0">None</option>
<option value="155">1-70</option>
<option value="185">71-250</option>
<option value="*">Enter value</option>
</select>
<input type="text" value="None" class="holder" >
</div>
JavaScript-
jQuery(".gfield_select").change(function() {
var val = jQuery(this).val();
var enter = jQuery(this).parent().find('option:selected').text();
var x = jQuery(this).parent();
if (enter ==="Enter a value" || enter === "Enter value"){
var holder = x.find('.holder');
holder.val('');
holder.prop('disabled',false);
holder.focus();
jQuery(this).val("0"); // Change select value to None.
} else {
x.find('.holder').val(x.find('option:selected').text());
x.find('.holder').prop('disabled',true);
}
});
JS FIDDLE

Select list auto update on any kind of change?

I have a jQuery that when you click on a select option it will show the next one, but you have to click, you cant just use the down arrow or "tab" to the next option. I am wondering what options do I have to make this work?
Here is my jQuery:
function typefunction()
{
var itemTypes = jQuery('#type');
var select = this.value;
itemTypes.change(function () {
if ($(this).val() == '1-Hand') {
$('.1-Hand').show();
$('.2-Hand').hide();
$('.off').hide();
$('.Armor').hide();
}
else $('.1-Hand').hide();
if ($(this).val() == '2-Hand') {
$('.2-Hand').show();
$('.1-Hand').hide();
$('.off').hide();
$('.Armor').hide();
}
else $('.2-Hand').hide();
if ($(this).val() == 'Armor') {
$('.Armor').show();
$('.2-Hand').hide();
$('.off').hide();
$('.1-Hand').hide();
}
else $('.Armor').hide();
if ($(this).val() == 'Off-Hand') {
$('.Off').show();
$('.2-Hand').hide();
$('.1-Hand').hide();
$('.Armor').hide();
}
else $('.Off').hide();
if ($(this).val() == '1-Hand') {
$('.one-hand-dps').show();
$('.item-armor').hide();
$('.two-hand-dps').hide();
}
else $('.one-hand-dps').hide();
if ($(this).val() == '2-Hand') {
$('.two-hand-dps').show();
$('.one-hand-dps').hide();
$('.item-armor').hide();
}
else $('.two-hand-dps').hide();
if ($(this).val() == 'Armor') {
$('.item-armor').show();
$('.one-hand-dps').hide();
$('.two-hand-dps').hide();
}
else $('.item-armor').hide();
});
}
And the HTML:
<div class="input-group item">
<span class="input-group-addon">Type</span>
<select id="type" name="type" class="form-control" onclick="typefunction(); itemstats(); Armor(); OffHand(); TwoHand();">
<option value="Any Type">Any Type</option>
<option value="1-Hand">1-Hand</option>
<option value="2-Hand">2-Hand</option>
<option value="Armor">Armor</option>
<option value="Off-Hand">Off-Hand</option>
</select>
</div>
<div class="input-group item">
<span class="1-Hand input-group-addon" style="display: none;">Sub-Type</span>
<select class="1-Hand form-control" name="sub[1]" style="display: none;">
<option value="All 1-Hand Item Types">All 1-Hand Item Types</option>
<option>Axe</option>
<option>Ceremonial Knife</option>
<option>Hand Crossbow</option>
<option>Dagger</option>
<option>Fist Weapon</option>
<option>Mace</option>
<option>Mighty Weapon</option>
<option>Spear</option>
<option>Sword</option>
<option>Wand</option>
</select>
</div>
<div class="input-group">
<span class="2-Hand input-group-addon" style="display: none; ">Sub-Type</span>
<select class="2-Hand form-control" name="sub[2]" style="display: none;">
<option>All 2-Hand Item Types</option>
<option>Two-Handed Axe</option>
<option>Bow</option>
<option>Diabo</option>
<option>Crossbow</option>
<option>Two-Handed Mace</option>
<option>Two-Handed Mighty Weapon</option>
<option>Polearm</option>
<option>Staff</option>
<option>Two-Handed Sword</option>
</select>
</div>
<div class="input-group">
<span class="Armor input-group-addon" style="display: none;">Sub-Type</span>
<select class="Armor form-control" name="sub[3]" style="display:none;">
<option>All Armor Item Types</option>
<option>Amulet</option>
<option>Belt</option>
<option>Boots</option>
<option>Bracers</option>
<option>Chest Armor</option>
<option>Cloak</option>
<option>Gloves</option>
<option>Helm</option>
<option>Pants</option>
<option>Mighty Belt</option>
<option>Ring</option>
<option>Shoulders</option>
<option>Spirit Stone</option>
<option>Voodoo Mask</option>
<option>Wizard Hat</option>
</select>
</div>
<div class="input-group">
<span class="Off input-group-addon" style="display: none;">Sub-Type</span>
<select class="Off form-control" name="sub[4]" style="display:none;">
<option>All Off-Hand Item Types</option>
<option>Mojo</option>
<option>Source</option>
<option>Quiver</option>
<option>Shield</option>
</select>
</div>

If you use onclick attribute in the select, then it stands to a reason that it requires a mouse click in order to work. Try using onchange for instance and keyboard usage should also work.
<select id="type" name="type" class="form-control" onchange="typefunction(); itemstats(); Armor(); OffHand(); TwoHand();">
<option value="Any Type">Any Type</option>
<option value="1-Hand">1-Hand</option>
<option value="2-Hand">2-Hand</option>
<option value="Armor">Armor</option>
<option value="Off-Hand">Off-Hand</option>
</select>
Also see this question, for more details about how to handle both clicks and keys immediately.