We Keep Coding

jquery get selected values of multiple select boxes

i have this form ..
<form method="post" action=''>
<select class="first">
<option value="0">choose ...</option>
<option value="1">Hello</option>
<option value="3">It's</option>
</select>
<select class="second">
<option value="0">choose ...</option>
<option value="2">World</option>
<option value="4">me</option>
</select>
<input type="text" class="dest" value="" />
</form>
and would like to dynamically gather selected informations with jQuery, because I need to decide on the selected values ...
When you select specific combination of OPTION values (lets say Hello + World) it should add some value to INPUT.dest and lock it (disable from editing) ...
But I can't make it work ... What I have, is that on each change of each select (separately only) i can map the actual value
$(document).ready(function () {
$(".first").change(function () {
var option = $(this).find("option:selected").val();
$(".dest").val(option);
});
$(".second").change(function () {
var option2 = $(this).find("option:selected").val();
$(".dest").val(option2);
});
});
Here is the live demo in fiddle
Do you know what am I missing? I know it will be just a little thing .. thank you

I would generalize it and use one event listener, and then gather the combination and do whatever:
$("select").change(function () {
var first = $(".first").find("option:selected").val();
var second = $(".second").find("option:selected").val();
if(first == 1 && second == 2)
$(".dest").val("Hello world").prop("disabled",true);
else
$(".dest").val("Something else").prop("disabled",false);
});
http://jsfiddle.net/cxx428af/3/

How to change a border color of html select tag if value is empty or 0

I have 4 select tag with class name select2 assigned to it. I want to make the border turn to red if there's no selected options or has an value equal to empty or 0. I've tried to add class using jquery but it makes all select.select2 border turns red.
Style
<style>
.errorType {
border-color: #F00 !important;
}
</style>
HTML
<select name="category" class="form-control select2" id="category" onChange="search_Operator(this.value)">
<option value="0"> Select Operator Category</option>
<option value="1">one</option> <option value="2"> two</option>
</select>
<select name="operatorName" class="form-control select2" id="operatorName" onChange="">
<option value="0"> Select operator Name</option>
<option value="1">one</option>
<option value="2"> two</option>
</select>
<select name="regionName" class="form-control select2" id="regionName">
<option value="0"> Select region Name</option>
<option value="1">one</option>
<option value="2"> two</option>
</select>
<select name="type" class="form-control select2" id="type">
<option value="0"> Select type </option>
</select>
JQUERY
$(function () {
$(".select2").select2();
});
$(".select2-selection").addClass('errorType');
Any idea?
Thanks in advance.

I've attached a function to the click event of the submit button, in order to check the value of every select element on the page:
$(function () {
$('.form-control-select2').select2();
$('#submit_btn').on('click', function(){
var submit_form = true;
$(".form-control-select2").each(function(){
var selected_value = $(this).val();
if (selected_value==0 || selected_value=='') {
$(this).next().find('.select2-selection').addClass('errorType');
submit_form = false;
} else {
$(this).next().find('.select2-selection').removeClass('errorType');
}
});
return submit_form;
});
});
Fiddle here: https://jsfiddle.net/64a41thz/21/.
Also, if you want to remove the red border when valid selection is made, add the following code:
$('.form-control-select2').on('change', function(){
if ($(this).val()!=0 && $(this).val()!='') {
$(this).next().find('.select2-selection').removeClass('errorType');
}
});
Fiddle here: https://jsfiddle.net/64a41thz/24/.

This does the trick. You just need to replace #yourButton with the actual ID you use.
$(document).on("click", "#yourButton", function() {
$(".select2").each(function(index, element) {
$(element).removeClass("errorType");
if ($(element).val() === "0") {
$(element).addClass("errorType");
}
});
});

Put your select tag inside a form with an id="submit" as shown
<form class="" action="" method="post" id="submit">
and add a button below the 4 select tags with this attribute
onclick="return submit_form('form#submit')"
the button should be like this,
<button type="button" class="btn btn-default" onclick="return submit_form('form#submit')">Submit</button>
In your jquery
function submit_form (form_id) {
$(form_id).find('select[name]').each(function (index, node) {
if (node.value == 0) {
var id = "select#" + node.id;
$(id).addClass('errorType');
}
});
}
This will search select tag with name as attribute, if found, it will get the value of the name and check of its empty or not. If found empty it will add new class that turns that select tag into a red border.
Hope this will help

Creating a text and dropdown list search functionality

I've written a piece of code that allows a Sharepoint list user to select a search criteria from a drop down list. By default, next to this, I'd like a textbox to be present. Besides the text box on the page is a Search button and a Reset button. This looks like this:
Ideally, what I'd like is that if the user selects a specific option in the search criteria drop down list (say, Field 3), the text box will change to a drop down list, which they choose their option from and then search for as usual.
This is what I have so far:
<script type="text/javascript">
function RedirectUrl() {
var sField = document.getElementById("searchField").value;
if (sField == "Field3") {
var search = document.getElementById("dropdownSearch").value;
} else {
var search = document.getElementById("textSearch").value;
}
var url = "";
if (search != "") {
url = "FilterName=" + sField + "&FilterMultiValue=*" + search + "*";
window.location.href = //Url of our site
}
else {
return false;
}
}
function ClearUrl() {
//Refresh page
}
</script>
Search Field: <select id="searchField">
<option selected value="Field1" >Field 1</option>
<option value="Field2">Field 2</option>
<option value="Field3">Field 3</option>
<option value="Field4">Field 4</option>
</select>
if (searchField == "Field3") {
Search text: <select id="dropdownSearch" />
<option selected value="One" >One</option>
<option value="Two">Two</option>
</select>
} else {
Search text: <input type="text" id="textSearch" />
}
</script>
<input type="button" id="btnSearch" value="Search" onclick="return RedirectUrl();" />
<input type="button" id="btnClear" value="Reset Filters" onclick="return ClearUrl();" />
The functionality of this code works. If the user selects "Field3" from the search field drop down list, whatever is selected in the drop down list is shown. If the user selects any other option from the search field drop down list, the text in the "search text" field is shown.
However, due to the if statement contained within, it looks like this:
Questions:
How can I get the code to automatically display either the text box or the drop down list depending on the user's selection in the Search Field?
How can I hide the if statement logic?
As can probably be guessed from the code I have almost zero experience in Javascript (and absolutely zero experience in JQuery, if any answers tend that way) - although I have tagged JQuery as from what little I do know I feel it might be better(?) suited for it.
Edit: My not-working code after ZiNNED's help:
Search Field:
<select id="searchField">
<option selected value="Field1">Field 1</option>
<option value="Field2">Field 2</option>
<option value="Field3">Field 3</option>
<option value="Field4">Field 4</option>
</select>Search Text:
<select id="dropdownSearch" style="display: none;">
<option value="1">Value 1</option>
<option value="2">Value 2</option>
<option value="3">Value 3</option>
</select>
<input id="textSearch" />
<input type="button" id="btnSearch" value="Search" />
<script type="text/javascript" src="link-to-Sharepoint/SiteAssets/jquery-1.11.1.js">
$(document).ready(function () {
$(document).on("change", "#searchField", function () {
var show = $(this).val() == "Field3";
$("#dropdownSearch").toggle(show);
$("#textSearch").toggle(!show);
});
});
</script>

You should do a couple of things.
First: remove the if-statement from the code and hide the dropdownSearch select by default:
HTML
Search Field: <select id="searchField">
<option selected value="Field1" >Field 1</option>
<option value="Field2">Field 2</option>
<option value="Field3">Field 3</option>
<option value="Field4">Field 4</option>
</select>
Search text:
<select id="dropdownSearch" style="display: none;" />
// All options and their values
</select>"
<input type="text" id="textSearch" />
Second, add a reference to jQuery and the following JavaScript to your document:
$(document).ready(function () {
$(document).on("change", "#searchField", function () {
var show = $(this).val() == "Field3";
$("#dropdownSearch").toggle(show);
$("#textSearch").toggle(!show);
});
});
This adds an event to the searchField dropdown that triggers when its value is changed. If the value equals Field3 the dropdownSearch is shown; otherwise the textSearch.
See this FIDDLE.
EDIT: After your edit, try changing the following:
<script type="text/javascript" src="link-to-Sharepoint/SiteAssets/jquery-1.11.1.js">
$(document).ready(function () {
$(document).on("change", "#searchField", function () {
var show = $(this).val() == "Field3";
$("#dropdownSearch").toggle(show);
$("#textSearch").toggle(!show);
});
});
</script>
to:
<script type="text/javascript" src="link-to-Sharepoint/SiteAssets/jquery-1.11.1.js"></script>
<script>
$(document).ready(function () {
$(document).on("change", "#searchField", function () {
var show = $(this).val() == "Field3";
$("#dropdownSearch").toggle(show);
$("#textSearch").toggle(!show);
});
});
</script>
You shouldn't add JavaScript to script tags when you're also referring to an external file in it.

Change contents in dropdown using javascript

Think I'm making this harder than it need to be. here is my jsfiddle http://jsfiddle.net/justmelat/pArU7/2/
straight html:
<form>
.
<input type="radio" name="sex" value="House">House
<input type="radio" name="sex" value="Cars">Cars
<hr>
<select name="cars">
<option value="0">--Select--</option>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="fiat">Fiat</option>
<option value="wood">Wood</option>
<option value="audi">Audi</option>
<option value="brick">Brick</option>
</select>
</form>
when user selects house, i only want the select, wood and brick options to appear in the dropdown
of course if cars is selected then wood and brick should disappear.
How can I easily do this in javascript?

Demo: http://jsfiddle.net/33tJR/
Just a quick mockup I made, nothing too fancy using jQuery or anything
function createOption(value) {
el = document.createElement('option');
el.value = value;
el.innerHTML = value;
el.id = value;
document.getElementById('select').appendChild(el);
}
document.getElementById('house').addEventListener('click', function() {
document.getElementById('select').innerHTML = '';
createOption('Volvo');
createOption('Saab');
createOption('Fiat');
});
document.getElementById('cars').addEventListener('click', function() {
document.getElementById('select').innerHTML = '';
createOption('Wood');
createOption('Brick')
});

Use the onchange event of radio button and if the value matches to male , call a javascript which will create the option list and clear the exisiting list and append the new one. All these used jquery
$(document).ready(function(){
$("input[name='sex']").change(function() {
if($(this).value === "male") { loadDLLWithOption1(); }
else { loadDLLWithOption2(); }
}
});
function loadDLLWithOption1()
{
var optionList = '<option>option1</option><option>option2</option>';
$("#cars").html(optionList);
}

how to display selected value from dropdownlist to label using javascript

I have 3 drop-down lists in my form. I want to display the selected value from each dropdown list to my label. The problem is that only one dropbox list will display, while the other two won't.
Here is my code:
<script>
window.onload = function()
{
document.getElementsByName('mydropdown')[0].onchange = function(e)
{
document.getElementById('mylabel').innerHTML = this.value;
};
}
</script>
this is my html
<td><select name="mydropdown" id="mydrop" onchange="">
<option value="none" selected="selected"></option>
<option value="17.50">6M</option>
<option value="25.00">12M</option>
</select>
</td>
<td><label id="mylabel"></label></td>
<td><select name="mydropdown" id="mydrop">
<option value="none" selected="selected">Length </option>
<option value="0.0455">DS516HO</option>
<option value="0.0559">DS520HO</option>
<option value="0.0780">DS516HWR</option>
<option value="0.0200">DS312WH</option>
<option value="0.0624">DS520WH</option>
<option value="0.0361">DS525FH</option>
<option value="0.1170">DS620HW</option>
<option value="0.1340">DS550HW</option>
<option value="0.1340">TD525HW</option>
<option value="0.1820">DS650HW</option>
<option value="0.2340">TD665HWR</option>
</select>
<td><label id="mylabel"></label></td>

You're only binding the zeroth element (the one you selet) with [0]. You need to bind to all of them, possibly like so:
Array.prototype.forEach.call(document.getElementsByName('mydropdown'),
function (elem) {
elem.addEventListener('change', function() {
document.getElementById('mylabel').innerHTML = this.value;
});
});
http://jsfiddle.net/UNLnx/
By the way you are reusing the same ID on multiple elements which is invalid.

Update: Working example: http://jsfiddle.net/x8Rdd/1/
That's because you are only setting the onchange event for the first element in your "mydropdown" group.
<script>
window.onload = function()
{
var dd = document.getElementsByName('mydropdown');
for (var i = 0; i < dd.length; i++) {
dd[i].onchange = function(e)
{
document.getElementById('mylabel').innerHTML = this.value;
};
}
}
</script>
Or something like that. If you're using jQuery then you can set the onchange property for all of them without the loop.