i have a question regarding Jquery
<select id="thechoices">
<option value="0">Select Box</option>
<option value="box1">Box 1</option>
<option value="box2">Box 2</option>
<option value="box3">Box 3</option>
</select>
<!-- the DIV -->
<div id="value"> disabled till you make a choice</div>
while the select menu have the choice Select box i need the div to be shown as a small black screen with the disabled message
once the user change the select menu and choose another option the value div shown the selected option for example Box 1 or Box 2
$(document).ready(function() {
// event triggered when options changed
$('#thechoices').change(function() {
// check if first option or other is selected
if ($(this).val() == 0) {
$('#value').addClass('disabled');
$('#value').html($('#value').data('default'));
} else {
$('#value').removeClass('disabled');
$('#value').html($(this).val());
}
});
});
Check out the fiddle: http://jsfiddle.net/gwKfP/1/
Here is a working Example: http://jsfiddle.net/sHqFX/
<select id="thechoices">
<option value="0">Select Box</option>
<option value="box1">Box 1</option>
<option value="box2">Box 2</option>
<option value="box3">Box 3</option>
</select>
<!-- the DIV -->
<div id="value"></div>
Put this between head tags
<script type="text/javascript">
$(document).ready(function(){
$("#thechoices").change(function(){
if($(this).val() == 0)
{
$("#value").html("disabled till you make a choice");
$("#value").css("background-color","black");
$("#value").css("color","white");
}
else{
$("#value").html($("#thechoices option:selected").text());
$("#value").css("background-color","white");
$("#value").css("color","black");
}
});
});
</script>
Here's a quick solution, just add this code:
CSS:
<style>
.disabled{
background-color: gray;
}
</style>
JavaScript
function onSelectedOption(){
var selectedText = $("#thechoices option:selected").text();
if($("#thechoices").val() == "0")
$('#value').addClass("disabled").text(selectedText );
else
$('#value').removeClass("disabled").text("");
}
$(document).ready(function(){
onSelectedOption(); //With this we 'disable' when page loads
$('#thechoices').change(onSelectedOption);
});
Hope this helps
Use the jQuery 'change' event. http://api.jquery.com/change/
$('#thechoices').change(function(){
$('#value').css('display','block');
});
$('#thechoices').change(
function() {
$('#value').text(
$('#thechoices :selected').text()
)
}
);
Related
I have an html option select with two options:
<select name="subject" id="subject">
<option value="option1">Option 1</option>
<option value="option2">Option 2</option>
</select>
I also have a div element with id="human-genome".
<div id="human-genome"></div>
I want to hide this id by default and when option 1 is selected. I want to show this id when option 2 is selected.
Here is my Jquery:
$(document).ready(function(){
$("#subject").change(function(){
if($(this.val() == 'option1'){
$('#human-genome').hide();
} else {
$('#human-genome').show();
});
});
For some reason, the code isn't working. Any suggestions?
Thank you in advance!
There is a syntax error in the code you developed. I edited the code as follows to make it understandable.
$(document).ready(function(){
$("#subject").change(function(){
console.log(this.value);
if(this.value == 'option1')
{
$('#human-genome').hide();
}
else
{
$('#human-genome').show();
}
});
});
#human-genome{
margin-left: 100px;
background-color: red;
width: 100px;
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select name="subject" id="subject">
<option value="option1">Hide</option>
<option value="option2">Show</option>
</select>
<div id="human-genome">TEST</div>
Try use $(this).val() instead of your code please.
$(document).ready(function(){
$("#subject").change(function(){
if($(this).val() == 'option1'){
$('#human-genome').hide();
} else {
$('#human-genome').show();
}});});
I am trying to load html page, based on dropdown selection. It works fine when selections are made. But want to load default page with default dropdown selection. Here is my code. Please help.
<!DOCTYPE html>
<html>
<head>
<style>
iframe {
display: block; /* iframes are inline by default */
background: #000;
border: none; /* Reset default border */
height: 100vh; /* Viewport-relative units */
width: 100vw;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js">
function showSelected(sel) {
locations = ["",
"/default.asp",
"test2.html",
"//example.com"
];
srcLocation = locations[sel.selectedIndex];
if (srcLocation != undefined && srcLocation != "") {
document.getElementById('content').innerHTML = '<iframe src="' + srcLocation +
'" width="100%" height="100%" frameborder="no" scrolling="auto"></iframe>';
//document.getElementById('content').innerHTML = "<br>Page Doesn't exists<br>";
}
}
$(function() {
$("select#page_selected").val("default.asp").change();
});
</script>
</head>
<body>
<select id="page_selected" onchange="showSelected(this);" onload="showSelected(this);">
<option value="">select an option...</option>
<option value="default.asp">Page 1</option>
<option value="test2.html">Page 2</option>
<option value="Page3.html">Page 3</option>
</select>
<div id="content"></div>
</body>
</html>
Something similar to below should do the work.
<select onchange="showSelected(this);" onload="showSelected(this);">
<option value="">select an option...</option>
<option value="default.asp" selected="selected">Page 1</option>
<option value="test2.html">Page 2</option>
<option value="Page3.html">Page 3</option>
</select>
Well HTML have an attribute for this, you can simply use selected attribute in your wanted option:
<select onchange="showSelected(this);">
<option value="">select an option...</option>
<option selected value="default.asp">Page 1</option>
<option value="test2.html">Page 2</option>
<option value="Page3.html">Page 3</option>
</select>
Your select does not have a page_selected id. Also there's a typo in default.asp
Without select id your code would have to be:
$(document).ready(function() {
$("select option").filter(function() {
return $(this).val() == "default.asp";
}).prop('selected', true);
//showSelected();
});
You could also use something like:
$(document).ready(function() {
$("select option[value='default.asp']").prop('selected', "selected");
//showSelected();
});
EDIT: to call the showSelected() after that, you'll need to pass in the $("select") object, but you could also just trigger the change event:
$("select").trigger("change");
Of course you'd want to add an id to your selectors!
EDIT: and you're not getting any errors in your console? For instance an error saying showSelected is not defined.
Here's a working fiddle: https://jsfiddle.net/oc8xcyce/
Even shorter: set the select value: https://jsfiddle.net/oc8xcyce/1/
i tried to display external content div on select option. Here is example
<select>
<option value="http://www.indiansuperleague.com/atletico-de-kolkata/squad/midfielder-3986-arata-izumi-playerprofile">ARATA
IZUMI</option>
<option value="http://www.indiansuperleague.com/atletico-de-kolkata/squad/midfielder-10724-borja-fernandez-playerprofile">BORJA
FERNANDEZ</option>
<option value="http://www.indiansuperleague.com/atletico-de-kolkata/squad/midfielder-10249-clifford-rayes-miranda-playerprofile">CLIFFORD
RAYES
MIRANDA</option>
</select>
<div id="content-display"></div>
When select I want to display content inside <div class="player-detailswrap">. And first option as default.
Please Help
You need change event for select, on which you get the html from selected option value url using jquery get method and then set returned html to required div:
var content_display = $('#content-display');
$('select').change(function(){
$.get(this.value, function( pagehtml ) {
content_display.html( pagehtml );
});
});
Hello there you can try this
$(select).on('change', function(){
$(#content-display).text($(this).val());
})
On the select change event:
Get the selected option value.
Create an iframe with this value as src attribute.
And append it to your div.
This is your way to go:
function displayOption(select) {
var frame = document.createElement("iframe");
frame.src = select.value;
document.getElementById("content-display").innerHTML = "";
document.getElementById("content-display").appendChild(frame);
}
<select onchange="displayOption(this)">
<option value="http://example.com/1">Content 1</option>
<option value="http://example.com/2">Content 2</option>
<option value="http://example.com/3">content 3</option>
<option value="http://example.com/4">Content 4</option>
</select>
<div id="content-display"></div>
This is a jquery solution:
//This code will initialize the div content
//You can use an id with the select if you have many dropdowns in the page
var dropdown = document.getElementsByTagName("select")[0];
$('#content-display').load(dropdown.options[0].value);
function displayOption(select) {
$('#content-display').load(select.value);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select onchange="displayOption(this)">
<option value="http://example.com/1">Content 1</option>
<option value="http://example.com/2">Content 2</option>
<option value="http://www.google.com">content 3</option>
<option value="http://example.com/4">Content 4</option>
</select>
<div id="content-display"></div>
EDIT:
To answer your question about loading a div content from the other page:
If you need to load an external div content, you can use:
function displayOption(select) {
$('#content-display').load(select.value+" #other-page-div-id");
}
(If you're comfortable with using jquery)
$("#select_id").on("input", function(e){
$("#content-display").text($(this).val())
});
Here's a fiddle of it working. on works best for listening for events.
If you would want to do this you can use jQuery AJAX GET or load request and simply feed the selector of the content you want form the page. The only thing is you HAVE to be on the same domain because of Cross Domain Policy.
You can take a look at jQuery Load in docs
$(document).load('test.html #container', fucn...) // Returns #container
Here's the solution
$('#content').change(function() {
$('#content-display').html($(this).val())
});
Assuming your want to load content from url.Use Ajax, it's easily can load contents without page reload.
var toggleContents = document.querySelectorAll('.toggleContent');
if (toggleContents) {
for (var i = 0; i < toggleContents.length; i++) {
toggleContents[i].addEventListener('change', changeContent, false);
}
}
function changeContent() {
var content = document.querySelector(this.dataset.content);
if (content) {
var xhttp = new XMLHttpRequest();
var url_id = '#main-content';
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
content.innerHTML = xhttp.responseText;
}
};
xhttp.open("GET", this.value + url_id, true);
xhttp.send();
}
}
<select class='toggleContent' data-content='#content-display'>
<option value="https://developer.mozilla.org/en-US/docs/Web/JavaScript">Content 1</option>
<option value="https://developer.mozilla.org/en-US/Learn/Getting_started_with_the_web/JavaScript_basics">Content 2</option>
<option value="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Typed_arrays">content 3</option>
<option value="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode">Content 4</option>
</select>
<div id="content-display"></div>
I hope your problem will resolve, Please use the below code. Please vote for me if my answer right for your question.
$(document).ready(function () {
$('#ddlOption').change(function () {
var val=$("#ddlOption").val();
$("#content-display").html('');
$("#content-display").append(val)
})
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<select id="ddlOption">
<option value="http://example.com/1">Content 1</option>
<option value="http://example.com/2">Content 2</option>
<option value="http://example.com/3">content 3</option>
<option value="http://example.com/4">Content 4</option>
</select>
<div id="content-display"></div>
You can use jQuery in order to do this stuff more easy:
So, the content maybe can't be loaded because of Access-Control-Allow-Origin, this happens when you trying to access a URL you don't own or is reestricted.
Check the code here
jQuery(document).ready(function(){
jQuery("#select-content").change(function(){
var content_url = jQuery("#select-content option:selected").val();
if(content_url){
jQuery("#content-display").load(content_url);
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<select id="select-content">
<option value="">-- select content --</option>
<option value="http://example.com/1">Content 1</option>
<option value="http://example.com/2">Content 2</option>
<option value="http://example.com/3">content 3</option>
<option value="http://example.com/4">Content 4</option>
</select>
<div id="content-display"></div>
The best way to achieve this would be some simple jQuery functions. In this example, there are 4 divs with different content in each. All are hidden by default.
Then you can use a bit of jQuery to hide and show certain divs based on the selection you make:
$(document).ready(function(){
$('.hidden').hide();
$('#dropdown').on('change', function() {
if (this.value == 'defaultoption') {
$('.hidden').hide();
}
else if (this.value == 'select1') {
$('.hidden').hide();
$("#content1").show();
}
else if (this.value == 'select2') {
$('.hidden').hide();
$("#content2").show();
}
else if (this.value == 'select3') {
$('.hidden').hide();
$("#content3").show();
}
else if (this.value == 'select4') {
$('.hidden').hide();
$("#content4").show();
}
else
{
$("#content-display").hide();
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="dropdown">
<option value="defaultoption">Select Content</option>
<option value="select1">Content 1</option>
<option value="select2">Content 2</option>
<option value="select3">Content 3</option>
<option value="select4">Content 4</option>
</select>
<div id="content-display">
<div id="content1" class="hidden">This is some text for content 1</div>
<div id="content2" class="hidden">This is some text for content 2</div>
<div id="content3" class="hidden">This is some text for content 3</div>
<div id="content4" class="hidden">This is some text for content 4</div>
</div>
Hope this helps!
I have two items: a Select List and a Display Image. The Select List has three values for the user to choose from. If the user selects on of the values then the Image View will show a related image with the selected value and if the selected value of the Select List will switch also change the picture.
I tried putting the script in the section: JavaScript -> "Function and Global Variable Declaration" of the page, but not run.
<script language="JavaScript" type="text/javascript">
function setValueDisplayImage(){
if ($("#SELECT_LIST").val() == 1) {
$("#DISPLAY_IMAGE").val('http://www.some.com/img1.jpg');
} else if ($("#SELECT_LIST").val() == 2) {
$("#DISPLAY_IMAGE").val('https://www.some.com/img2.jpg');
} else if ($("#SELECT_LIST").val() == 3){
$("#DISPLAY_IMAGE").val('http://www.some.com/img3.jpg');
}
}</script>
Use jquery on() like,
$(function(){
$("#SELECT_LIST").on('change', function(){
var val=this.value;
if(val==1 || val==2 || val==3){
$("#DISPLAY_IMAGE").val('http://www.some.com/img'+val+'.jpg');
}
});
});
$(function(){
$("#SELECT_LIST").on('change', function(){
var val=this.value;
if(val==1 || val==2 || val==3){
$("#DISPLAY_IMAGE").val('http://www.some.com/img'+val+'.jpg');
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="SELECT_LIST">
<option value="1">First Image</option>
<option value="2">Second Image</option>
<option value="3">Third Image</option>
</select>
<br/>
<input id="DISPLAY_IMAGE" style="width:250px;"/>
And if your DISPLAY_IMAGE element is an img then your need to use attr() to change the image src like,
$(function(){
$("#SELECT_LIST").on('change', function(){
var val=this.value;
if(val){
$("#DISPLAY_IMAGE").attr('src','http://placehold.it/250x'+val);
}
}).change();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="SELECT_LIST">
<option value="">Select</option>
<option value="100">First Image</option>
<option value="150">Second Image</option>
<option value="200">Third Image</option>
</select>
<br/>
<img id="DISPLAY_IMAGE"/>
I have the following form:
var x = document.getElementById("submit-button");
if (x.selectedIndex.value == null) {
$("#submit-button").css("display","none");
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<select>
<option disabled selected>Select colour</option>
<option value="Orange">Orange</option>
<option value="Apple">Apple</option>
<option value="Lemon">Lemon</option>
</select>
<button id="submit-button" type="submit">Click</button>
</form>
If the selected index of the dropdown is the disabled placeholder option with no value, i want to hide the submit button. As soon as a colour is selected i want to show the button again.
Any help will be appreciated.
You are in the right way. But missing some points with events:
1 - The whole code must be executed when DOM is ready (document loaded)
2 - You must observe the select change event to check for changes
3 - You can use jQuery .hide() and .show() do control the element's visibility
// Executed when DOM is loaded
$(document).ready(function() {
// Executed when select is changed
$("select").on('change',function() {
var x = this.selectedIndex;
if (x == "") {
$("#submit-button").hide();
} else {
$("#submit-button").show();
}
});
// It must not be visible at first time
$("#submit-button").css("display","none");
});
Look this working fiddle
The shortest way would be
$(function(){
$("select").on("change", function(){
$("#submit-button").toggle(!!this.value);
}).change();
});
<script src="//code.jquery.com/jquery-2.1.1.min.js"></script>
<form>
<select>
<option selected value="">Select colour</option>
<option value="Orange">Orange</option>
<option value="Apple">Apple</option>
<option value="Lemon">Lemon</option>
</select>
<button id="submit-button" type="submit">Click</button>
</form>
You need to create an event handler for when the dropdown changes. In the example below I've hidden the submit button by default, and when the dropdown changes I toggle the visibility of the button based on if there is a selected value in the dropdown.
I allowed your "Select colour" option to be available just to better demonstrate how the event handler works.
$("#submit-button").hide();
$("select").on("change", function() {
if (this.value)
$("#submit-button").show();
else
$("#submit-button").hide();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<select>
<option selected value="">Select colour</option>
<option value="Orange">Orange</option>
<option value="Apple">Apple</option>
<option value="Lemon">Lemon</option>
</select>
<button id="submit-button" type="submit">Click</button>
</form>
You should add a listener to your select like this:
$('form select').on('change', function(){
if($(this).val() == null){
$("#submit-button").hide();
}else{
$("#submit-button").show();
}
}).change();
It will check every time that changes the option, hiding the button when the option has no value and showing it when it does. Also, it will trigger that at first to hide for the initial case.
Hi there Kindly try the following solution and tell me if you wanted something like this :
$(document).ready(function(){
if($('select').val() == null){
$('#submit-button').css('display','none');
}
$('select').on('change', function() {
$('#submit-button').css('display','block');
});