How to trigger dynamic dropdown in Edit View - javascript

I am new to web development and I just learned Jquery to create dynamic dropdowns. The problem that I am facing is that my dropdowns are not being updated when I go to the edit view.
So I have been able to successfully create dynamic dropdowns for my Create view (see code).
Create.cshtml:
<div class="form-group col-md-4" id="drop_1">
<label asp-for="Option_1" class="control-label"></label>
<select asp-for="Option_1" class="form-control" id="opt1">
<option value="">Select Option</option>
<option value="A">A</option>
<option value="B">B</option>
<option value="C">C</option>
<option value="D">D</option>
</select>
<span asp-validation-for="Option_1" class="text-danger"></span>
</div>
<div class="form-group col-md-4" id="drop_2">
<label asp-for="Option_2" class="control-label"></label>
<select asp-for="Option_2" class="form-control" id="opt2">
<option value="">Select Option</option>
</select>
<span asp-validation-for="Option_2" class="text-danger"></span>
</div>
<div class="form-group col-md-4" id="drop_3">
<label asp-for="Option_3" class="control-label"></label>
<select asp-for="Option_3" class="form-control" id="opt3">
<option value="">Select Option</option>
</select>
<span asp-validation-for="Option_3" class="text-danger"></span>
</div>
Edit.cshtml is the same as Create.cshtml
Site.js:
$(function() {
$('#opt3').change(function () {
var x = $(this);
if (x.val() == "") {
$('#drop_2').hide();
$('#drop_3').hide();
}
else {
if (x.val() == "A") {
$('#opt2').find('option').remove().end();
$('#opt2').append('<option value="D">D</option>');
.
.
. etc.
}
}
//Same for the remaining dropdowns
});
});
The point is that my dropdowns work when I start clicking on my dropdowns. But what I would like to see is that when I try to go into my edit views and the data is pulled in, the dropdowns automatically get changed based on whatever data there is for dropdown 1 and 2, without the user having to reselect dropdown 1 and 2.

The change event is sent to an element when its value changes. If you want to make the dropdownlist changes when page is loading the first time , you can write your javascript methods directly in $(function () {}); . For example , if you want to add D option to select 2 after loading edit views :
<script>
$(function () {
$('#opt2').append('<option value="D">D</option>');
//write your other logic here
$('#opt3').change(function () {
var x = $(this);
if (x.val() == "") {
$('#drop_2').hide();
$('#drop_3').hide();
}
else {
if (x.val() == "A") {
$('#opt2').find('option').remove().end();
$('#opt2').append('<option value="D">D</option>');
}
}
//Same for the remaining dropdowns
});
});
</script>

Related

Drop down when select the option from ajax another input field appear

Hi i needed some help where if i select a drop down and select from ajax option and a hidden input field appear how can i do it ?
<div class="form-row">
<div class="col">
<label for="select-price-mode" class="col-form-label">Price Mode</label>
<select class="select-price-mode custom-select-sm col-10" id="select-price-mode" required>
<option selected disabled value="">Select ....</option>
</select>
</div>
<div class="col" hidden>
<label for="select-payment-frequency" class="col-form-label">Payment Frequency</label>
<select class="select-payment-frequency custom-select-sm col-10" id="select-payment-frequency" required>
<option selected disabled value="">Select ....</option>
</select>
</div>
This is my ajax
// Here the calling Ajax for the drop down menu below
$.ajax({
// The url that you're going to post
/*
This is the url that you're going to put to call the
backend api,
in this case, it's
https://ecoexchange.dscloud.me:8080/api/get (production env)
*/
url:"https://ecoexchange.dscloud.me:8090/api/get",
// The HTTP method that you're planning to use
// i.e. GET, POST, PUT, DELETE
// In this case it's a get method, so we'll use GET
method:"GET",
// In this case, we are going to use headers as
headers:{
// The query you're planning to call
// i.e. <query> can be UserGet(0), RecyclableGet(0), etc.
query:"PriceModeGet()",
// Gets the apikey from the sessionStorage
apikey:sessionStorage.getItem("apikey")
},
success:function(data,textStatus,xhr) {
console.log(data);
for (let option of data) {
$('#select-price-mode').append($('<option>', {
value: option.PriceMode,
text: option.PriceMode
}));
}
},
error:function(xhr,textStatus,err) {
console.log(err);
}
});
and this is my ajax response
[
{
"PriceMode": "Price By Recyclables"
},
{
"PriceMode": "Service Charger"
}
]
Where say if i select Price By Recyclables the hidden drop down list appear how can i do it ?
You can use the onchange event to trigger a check and if the user selected the value you want, then display the selectbox. You'd have to add an id to the div with the hidden prop (divToDisplay).
$("#select-price-mode").change(function() {
if(this.value === "Price By Recyclables") {
$('#divToDisplay').removeAttr('hidden');
}
});
Just invoke a function when an option is selected in first select
const checkPriceMode = () => {
let value = $('.select-price-mode').val();
$('.payment-frequency').fadeOut();
if(value === 'Price By Recyclables') $('.payment-frequency').fadeIn();
};
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="form-row">
<div class="col">
<label for="select-price-mode" class="col-form-label">Price Mode</label>
<select onchange="checkPriceMode()" class="select-price-mode custom-select-sm col-10" id="select-price-mode" required>
<option selected disabled value="">Select.....</option>
<option value="Price By Recyclables">Price By Recyclables</option>
<option value="Service Charger">Service Charger</option>
</select>
</div>
<div class="col payment-frequency" hidden>
<label for="select-payment-frequency" class="col-form-label">Payment Frequency</label>
<select class="select-payment-frequency custom-select-sm col-10" id="select-payment-frequency" required>
<option selected disabled value="">Select ....</option>
</select>
</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.

Disabling select input depending on previous select option

What I'm trying to achieve here is this: I have a select input that has 3 options : Sale, Rent, Wanted. Depending on which option is selected, there are 3 other select inputs. So lets say I choose Sale then it should show the property sale select input and hide the other two, if I choose Rent then it should show the property rent select input and the hide the other two.
The hiding works well but my issue is when i submit for search using GET, it passes the data of the two other hidden select inputs because they are not disabled. I tried disabling them depending on selection as shown in the below code but it didn't work. Any help?
Here is my code:
<script type="text/javascript">
$('#type').on('change',function(){
if( $(this).val() === "sale"){
$("#propertyrent").hide();
$("#propertywanted").hide();
$("#pricetype").show();
$("#propertysale").show();
document.getElementById("propertyrent").disabled=true;
document.getElementById("propertywanted").disabled=true;
}
else if( $(this).val() === "rent"){
$("#pricetype").hide();
$("#propertyrent").show();
$("#propertywanted").hide();
$("#propertysale").hide();
document.getElementById('propertysale').disabled=true;
document.getElementById('propertywanted').disabled=true;
}
else if( $(this).val() === "wanted"){
$("#pricetype").hide();
$("#propertyrent").hide();
$("#propertywanted").show();
$("#propertysale").hide();
document.getElementById('propertyrent').disabled=true;
document.getElementById('propertysale').disabled=true;
}
});
</script>
<label class="col-sm-3 control-label">Type</label>
<select name="type" id="type">
<option value="sale">Sale</option>
<option value="rent">Rent</option>
<option value="wanted">Wanted</option>
</select>
<div id="propertysale">
<label class="col-sm-3 control-label">Property</label>
<select name="propertysale" id="propertysale" class="form-control col-sm-12">
<option value="all">Any</option>
<option value="houses">Houses</option>
<option value="apartments">Apartments</option>
<option value="land">Land</option>
<option value="buildings">Buildings</option>
<option value="wfsc" >Warehouse / Factory / Store / Chalet</option>
</select>
</div>
<div id="propertyrent" style="display:none;">
<label class="col-sm-3 control-label">Property</label>
<select name="propertyrent" id="propertyrent" class="form-control col-sm-12">
<option value="all">Any</option>
<option value="houses">Houses</option>
<option value="apartments">Apartments / Flats</option>
<option value="wfsc" >Warehouse / Factory / Store / Chalet</option>
</select>
</div>
<div id="propertywanted" style="display:none;">
<label class="col-sm-3 control-label">Property</label>
<select name="propertywanted" id="propertywanted" class="form-control col-sm-12">
<option value="all">Any</option>
<option value="houses">Houses</option>
<option value="apartments">Apartments</option>
<option value="land">Land</option>
<option value="buildings">Buildings</option>
<option value="wfsc" >Warehouse / Factory / Store / Chalet</option>
</select>
Use jQuery selector for any input inside div to disabling them:
$("#yourDiv input, #yourDiv select").prop("disabled", true);
To remove disabled: prop("disabled", false);
here div and your selectbox id is same 'propertyrent','propertywanted','propertysale' change this.
and when you hide or disable selectbox set value blank of select box
The problem is, you are not disabling the select menu. You are disabling the div that contains the select menu
<div id="propertyrent" style="display:none;">..
<select name="propertyrent" id="propertyrent" c...
Use different id for both. It will work

Option value not changing with user selection

I have a form with the following dropdown selection menu in HTML:
<div class="input-field col s4">
<select id="disposition" required>
<option value="No_Sale" id="noSale">No Sale</option>
<option value="Sale" id="yeahSale">Sale</option>
<option value="Unreachable" id="noContact">Unreachable</option>
<option value="Call_Back" id="callBack">Call Back</option>
</select>
<label>Disposition</label>
</div>
The above snippet for dispositions should affect whether or not other form elements are disabled. However, I cannot seem to get the value to change on user input.
Here is the javascript with jQuery:
$(document).on('change', 'select', function(){
console.log(disposition);
console.log($("#yeahSale").selected == true);
if ($("#yeahSale").selected == true) {
$("#fund").removeAttr('disabled');
}
});
For both $("#disposition").val() and $("#yeahSale").selected, the console.log returns
"No_Sale"
and false when I click on the form element and select
"Sale."
The first thing I tried was:
if (disposition == "Sale")
I have also tried:
var disposition = $("#disposition").find(":selected").text();
I've been searching stack exchange and google for answers for almost an hour but I haven't any success so far. My apologies if I just completely missed an extant question that's already been solved.
Thanks for your help!
$("#disposition").val() gives you the value of selected option.
So you simply want to put condition according to the value you got selected.
$(document).on('change', '#disposition', function(){
/*
If you want to put condition based on
option with specific id is selected or not then
if($("#yeahSale").is(':selected')) {
}
*/
if ($("#disposition").val() == 'Sale') {
// Do here what you want to do
// $("#fund").removeAttr('disabled');
console.log("Sale Selected");
} else {
console.log("Selected Option is: "+ $("#disposition").val());
}
//Get Id attr of selected option
console.log("Id of selected option is: " + $(this).find('option:selected').attr('id'));
// Check weather option with specific Id is selected or not:
console.log($("#yeahSale").is(':selected'));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="input-field col s4">
<select id="disposition" required>
<option value="No_Sale" id="noSale">No Sale</option>
<option value="Sale" id="yeahSale">Sale</option>
<option value="Unreachable" id="noContact">Unreachable</option>
<option value="Call_Back" id="callBack">Call Back</option>
</select>
<label>Disposition</label>
</div>
If you want to get id attribute of selected option you can use this
$(this).find('option:selected').attr('id')
If you want to see option with ID yeahSale is selected or not than try this:
$("#yeahSale").is(':selected')
<div class="input-field col s4">
<select id="disposition">
<option value="No_Sale">No Sale</option>
<option value="Sale">Sale</option>
<option value="Unreachable">Unreachable</option>
<option value="Call_Back">Call Back</option>
</select>
<label>Disposition</label>
</div>
<script>
$(document).on('change', function(){
alert($("#disposition").val());
console.log($("#yeahSale").selected == true);
if ($("#yeahSale").selected == true) {
$("#fund").removeAttr('disabled');
}
});
tested and found it working
var disposition = $('#disposition').val();
$('#disposition').change(function() {
disposition = $(this).val();
console.log(disposition);
}
All you need is disposition.value and an onchange event.
The script below will acknowledge user input and return the updated disposition.value whenever a new selection is made:
var disposition = document.getElementById('disposition');
disposition.addEventListener('change', function(){console.log(disposition.value);}, false);
<select id="disposition" required>
<option value="No_Sale">No Sale</option>
<option value="Sale">Sale</option>
<option value="Unreachable">Unreachable</option>
<option value="Call_Back">Call Back</option>
</select>

only one value is equal to and selected in multiple select

I have the exact same question as this:
jQuery Hide / Show input when selected option is equal to
However, it doesn't work when you go to multiple select, when the specific option is selected it works, but when you select another option alongside it stops working.
The question again is this: I want to show a div(#showme) if option 4 was selected, and I want to to work even if option 3 & 4 were selected, so at any given time if option 4 was selected the div should show.
This is the Javascript & HTML I have so far: (please note that I have more than one select in this form)
$('select[multiple]').each(function() {
$(this).change(function() {
obj = '#' + $(this).attr('id') + '_desc';
if($(this).val() == "4") {
$(obj).parent().parent().parent().removeClass('hide');
$(obj).css('display','block');
}
else {
$(obj).parent().parent().parent().addClass('hide');
$(obj).css('display','none');
}
});
});
<div class="row">
<div class="col-sm-12">
<div class="form-group">
<label for="feedback_q1">Hello?</label>
<select class="form-control selectpicker show-tick" name="feedback_q1[]" id="feedback_q1" multiple="multiple" title="Choose...">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</div>
</div>
</div>
<div class="row hide">
<div class="col-sm-12">
<div class="form-group">
<label for="feedback_q1_desc">desc <span class="glyphicon glyphicon-pencil"></span></label>
<textarea name="feedback_q1_desc" id="feedback_q1_desc" class="form-control" data-toggle="tooltip" data-placement="top" title="desc" rows="2"></textarea>
</div>
</div>
</div>
Thanks for the help
When multiple selections are made, $(this).val() will contain an array of the values. Iterate through them and check for '4'. If $(this).val() is null, then nothing has been selected.
The example below does exactly what you want, including the changes after our extensive exchange in the comments and chat, including your most recent request to handle values pre-selected when the document loads.
Additionally, you were missing the bootstrap JavaScript file, and the files you were already including were in the wrong order and wrong location. The example below includes all of the .js and .css files in the correct order and location.
HTML
<!-- These should be in head -->
<link href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.4/css/bootstrap.css" rel="stylesheet" />
<link href="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.min.css" rel="stylesheet" />
<!-- Body content -->
<div class="row">
<div class="col-sm-12">
<div class="form-group">
<label for="feedback_q1">Hello?</label>
<select class="form-control selectpicker show-tick" name="feedback_q1[]" id="feedback_q1" multiple="multiple" title="Choose...">
<option value="1">1</option>
<option value="2" selected>2</option>
<option value="3">3</option>
<option value="4" selected>4</option>
</select>
</div>
</div>
</div>
<div class="row hide">
<div class="col-sm-12">
<div class="form-group">
<label for="feedback_q1_desc">desc <span class="glyphicon glyphicon-pencil"></span>
</label>
<textarea name="feedback_q1_desc" id="feedback_q1_desc" class="form-control" data-toggle="tooltip" data-placement="top" title="אנא פרט" rows="2"></textarea>
</div>
</div>
</div>
<!-- These should be at the end of <body> -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/js/bootstrap-select.min.js"></script>
JavaScript
// Check a select for a specific value and show/hide div based on selection
// Select will come in as a jQuery object
function checkSelect(control) {
// Build selector for associated description field
var selector = '#' + control.attr('id') + '_desc';
// Handle scenario where nothing is selected
if (control.val() == null) {
$(selector).parent().parent().parent().addClass('hide');
$(selector).css('display', 'none');
return;
}
// Get array containing selected values
var vals = control.val();
// Handle scenario where something is selected
for (i = 0; i < vals.length; i++) {
if (control.val()[i] == "4") {
$(selector).parent().parent().parent().removeClass('hide');
$(selector).css('display', 'block');
return; // Stop checking as we know the value we want is selected
} else {
$(selector).parent().parent().parent().addClass('hide');
$(selector).css('display', 'none');
}
}
}
// This runs when the DOM is ready
$(function () {
// Bind selectpicker
$('.selectpicker').selectpicker();
// Iterate through all multiple selects
$('select[multiple]').each(function () {
// Check for pre-selected values when page first loads
checkSelect($(this));
// Bind to change event so that values are checked after something is changed
$(this).change(function () {
checkSelect($(this));
});
});
});
Demo (third version): http://jsfiddle.net/BenjaminRay/7ckp7epf/
<div class="form-group">
<select class="form-control selectpicker show-tick" name="Status" id="Status" multiple="multiple" title="Choose...">
#foreach (SelectListItem item in ViewBag.Status)
{
if (item.Selected == false)
{
<option value="#item.Value">#item.Text</option>
}
else
{
<option value="#item.Value" selected>#item.Text</option>
}
}
</select>
</div>

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