jQuery parallel autocomplete - javascript

I have a jQuery autocomplete attached to an textbox input element which works fine.
I have a special requirement in which I would need to have two dropdowns appear with different data. So the user would type in the input textbox and as he is typing it would show two dropdowns side by side and filter both at the same time depending on what he is typing.
Anyone know how I could achieve this ?

Why not use Select2? I've provided an example of a keyup check using jQuery, and then a simple Select2 call on another select so you can see the difference.
$(document).ready(function() {
$('input').on('keyup', function () {
var value = $(this).val();
var $options = $('#test').find('option');
var selected = false;
$options.each(function() {
var $option = $(this);
var text = $option.text()
if( !selected && text.indexOf(value) > -1) {
$option.prop('selected', true);
selected = true;
}
});
});
$('#test2').select2();
});
<link href="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css" rel="stylesheet" />
<input type="text" />
<br />
<select id="test">
<option></option>
<option val="1">Testing</option>
<option val="2">Why Not?</option>
<option val="3">Use</option>
<option val="4">Select2?</option>
</select>
<br />
<br />
<select id="test2">
<option></option>
<option val="1">See</option>
<option val="2">It's</option>
<option val="3">Much</option>
<option val="4">Better</option>
</select>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>

Related

I need to trigger change function whenever a text in dropdown list is selected

My jquery code is having two dropdown boxes,one containing country and the other one holds currency.so here i want that whenever a country is selected in the box it will trigger a change function that will perform some comparison using if-else and will select the currency in the other dropdown and leaving it as 'disabled' to true.Below is my code for the same:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
$(document).ready(function () {
$(".select").change(function () {
debugger;
var c = $('#country :selected').text();
if (c == 'india') {
$('select[name="currency"]').find('option[value="1"]').attr("selected", true);
document.getElementById('disable').disabled = true;
}
else
{
$('select[name="currency"]').find('option[value="2"]').attr("selected", true);
document.getElementById('disable').disabled = true;
}
});
});
//$(function () {
// var select = $('select.select');
// select.change(function () {
// select.not(this).val(this.value);
// document.getElementById("disable").disabled = true;
// });
//});
</script>
</head>
<body>
<form>
<select name="country" id="country" class="select">
<option value="">Select</option>
<option value="1">india</option>
<option value="2">America</option>
</select>
<select name="currency" id="disable" class="select">
<option value="">Select</option>
<option value="1">INR</option>
<option value="2">DOLLAR</option>
</select>
<br><br>
</form>
</body>
</html>
but now the problem is when i select india it shows IR which is ok and then when i select America,it shows Doller and finally the problem comes now,when i again change the country back to india the change function is not called at all and dollar gets remain selected and disabled.Fix this it would be a great help!
Use .prop instead of .attr
With .attr, both the options have selected attribute set hence browser fail to make out which option to be set as selected.
From docs, To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method. (.attr() method sometimes took property values into account when retrieving some attributes, which could cause inconsistent behavior.)
$(document).ready(function() {
$(".select").change(function() {
var c = $('#country :selected').text();
if (c == 'india') {
$('select[name="currency"]').find('option[value="1"]').prop("selected", true);
} else {
$('select[name="currency"]').find('option[value="2"]').prop("selected", true);
}
document.getElementById('disable').disabled = true;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<form>
<select name="country" id="country" class="select">
<option value="">Select</option>
<option value="1">india</option>
<option value="2">America</option>
</select>
<select name="currency" id="disable" class="select">
<option value="">Select</option>
<option value="1">INR</option>
<option value="2">DOLLAR</option>
</select>
<br>
<br>
</form>
Since the values on both select are the same. You can easily set the value of the second select based on the first.
$(function() {
$('.select').on('change',function() {
var val = $(this).find(':selected').val();
$('[name=currency]').val( val ).attr('disabled',true);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<select name="country" id="country" class="select">
<option value="">Select</option>
<option value="1">india</option>
<option value="2">America</option>
</select>
<select name="currency">
<option value=""> </option>
<option value="1">INR</option>
<option value="2">DOLLAR</option>
</select>
</form>
To complete the above answer you can use the "$" jquery selector instead of document.getElementById
Plus note you can use .prop('disabled', false);
too, like this :
$(document).ready(function() {
$(".select").change(function() {
var c = $('#country :selected').text();
if (c == 'india') {
$('select[name="currency"]').find('option[value="1"]').prop("selected", true);
} else {
$('select[name="currency"]').find('option[value="2"]').prop("selected", true);
}
$(#'disable').prop('disabled', true);
});
});

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/

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.

More Properties of Dropdown options

I've got a dropdown setup going on in which the user enters an input value, chooses a calculation to perform on that number from a dropdown, then a function displays the result.
What I would like is to add more 'values' to the dropdown, so when an option is selected from the list, it can also, say, display some text stored in the list, or some other information. Right now I can return the selected option's value (.value) and use the option's name (.text) to perform functions, but is there any more data I can add to each selection to be used later?
<html>
<head>
<script language="JavaScript">
function myfunction(form)
{
var i = parseFloat(form.Input.value, 10);
var e = document.getElementById("calculationList");
var strUser = e.options[e.selectedIndex].value;
form.Output.value = strUser*i;
}
</script>
</head>
<body>
<form>
Input Number:
<INPUT NAME="Input" SIZE=15>
Make a selection:
<select id="calculationList" onchange="myfunction(form)">
<option></option>
<option value="2">Double It</option>
<option value="3">Triple It</option>
<option value="10">Multiply It By ten</option>
</select>
Output Number:
<INPUT NAME="Output" SIZE=15>
</FORM>
</body>
</html>
Basically you may attach data attribute to your options like that:
<select id="calculationList">
<option></option>
<option value="2" data-aaa="10">Double It</option>
<option value="3" data-aaa="20">Triple It</option>
<option value="10" data-aaa="30">Multiply It By ten</option>
</select>
And later get the content of the attribute:
var dropdown = document.getElementById("calculationList");
dropdown.addEventListener("change", function() {
console.log(dropdown.options[dropdown.selectedIndex].getAttribute("data-aaa"));
});
jsfiddle -> http://jsfiddle.net/pzKrr/
Edit:
If you want to implement my solution remove onchange="myfunction(form)" from the select tag. After that add the following code just after that myfunction
window.onload = function() {
var dropdown = document.getElementById("calculationList");
dropdown.addEventListener("change", function() {
console.log(dropdown.options[dropdown.selectedIndex].getAttribute("data-aaa"));
});
};

Enabling textbox by means of checkbox with JS

Can you explain me how can I enable/disable a text box (that means, can or cannot be edit) depending on a combobox?
If the combobox value = 1 -> textbox enable; if combobox = 0 -> textbox disable.
var combo = document.getElementById('combo');
combo.onchange = function() {
var value = document.getElementById('combo').value;
var textBox = document.getElementById('textbox');
if (value == '0') {
textBox.setAttribute('readonly', 'readonly');
} else if (value == '1') {
textBox.removeAttribute('readonly');
}
};
and here's a live demo.
You want to use the onchange event of the select element. Here's an example:
<html>
<head>
<script type="text/javascript">
function select1changed()
{
var select1 = document.getElementById('select1');
var txt1 = document.getElementById('txt1');
txt1.disabled = (select1.value == '0');
}
</script>
</head>
<body>
<form>
Combo:
<select id="select1" onchange="select1changed();">
<option value="0">Option 0</option>
<option value="1">Option 1</option>
</select>
Text: <input id="txt1" type="text" value="sometext" disabled="disabled" />
</form>
</body>
Note: I marked txt1 as disabled to handle the initial state when the page is loaded and select1 is set to Option 0.
Check this,
<select id='abc' onChange="changeMe()">
<option value="">--Select--</option>
<option value="111">111</option>
<option value="222">222</option>
</select>
<input type="text" name="abcText" />
<script>
function changeMe(){
if(document.getElementById("abc").value == "111"){
document.getElementById("abcText").disabled = true;
}else{
document.getElementById("abcText").disabled = false;
}
}
</script>
Yes, you can do it easily.
Make use of the disabled attribute of the text box like this
function enableField(val)
{
document.form1.address2.disabled = val;
}
Note: address2 is a textfield

Categories