Toggle Show and Enable Textfiled When Certain Radio Button is Selected - javascript

I would like to be able to have an input field (initially hidden and disabled) to be shown and enabled every time the "Other" radio button is selected, and ofcoure to be hidden and disabled when a different radio button is selected . I have gotten this script to show and hide the textfield appropriately, but Id like to know how I can get enabling and disabling to happen with it
$('input[name="x_description"]').bind('change',function(){
var showOrHide = ($(this).val() == "Other") ? true : false;
$('#other_program_text').toggle(showOrHide);
});
I know that this is how to show the field and enable the textfield, but cant figure out how to put it all together,
$(this).show().prop('disabled', false);
Thanks in advance,
Dan

$('input[name="x_description"]').bind('change',function(){
if ( showOrHide == true ) {
$('#other_program_text').show().prop('disabled',false);
} else if ( showOrHide == false ) {
$('#other_program_text').hide().prop('disabled',true);
}
});

You want to use the $(this).attr() function to set properties on an HTML element. With one parameter it'll read the passed param, with two it'll set it.
Like $(this).attr("enabled", true)

You can use "click" method
$('input[name="x_description"]').click(function() {
if($('#radio_button').is(':checked')) {
alert("it's checked"); //do your stuff
}
});
If your content are dynamically generated then use "live" method
$('input[name="x_description"]').live('click',function() {
if($('#radio_button').is(':checked')) {
alert("it's checked"); //do your stuff
}
});

Related

JS overides check in the checkbox on toggle [duplicate]

I'm using Jquery's toggle event to do some stuff when a user clicks a checkbox, like this:
$('input#myId').toggle(
function(){
//do stuff
},
function(){
//do other stuff
}
);
The problem is that the checkbox isn't being ticked when I click on the checkbox. (All the stuff I've put into the toggle event is working properly.)
I've tried the following:
$('input#myId').attr('checked', 'checked');
and
$(this).attr('checked', 'checked');
and even simply
return true;
But nothing is working. Can anyone tell me where I'm going wrong?
Edit - thanks to all who replied. Dreas' answer very nearly worked for me, except for the part that checked the attribute. This works perfectly (although it's a bit hacky)
$('input#myInput').change(function ()
{
if(!$(this).hasClass("checked"))
{
//do stuff if the checkbox isn't checked
$(this).addClass("checked");
return;
}
//do stuff if the checkbox isn't checked
$(this).removeClass('checked');
});
Thanks again to all who replied.
Use the change event instead of the toggle event, like such:
$('input#myId').change(function () {
if ($(this).attr("checked")) {
//do the stuff that you would do when 'checked'
return;
}
//Here do the stuff you want to do when 'unchecked'
});
While using the change event handler suggested by Dreas Grech is appropriate, it doesn't work well in IE 6 & 7, which doesn't fire the change event until the focus is blurred (that is, until you click outside the area of the checkbox). As QuirksMode say, "it's a serious bug".
You might want to use the click event handler, but that won't work with keyboard navigation. You need to register a keyup handler too...
See also this related question.
I haven't yet found a good cross-browser solution that supports both mouse clicks and keyboard activation of the checkboxes (and doesn't fire too many events).
Regarding your solution for checking whether the checkbox is checked or not, instead of adding your own checked class, you may use HTML's checked attribute:
$('input#myInput').change(function () {
if ($(this).attr("checked")) {
//do stuff if the checkbox is checked
} else {
//do stuff if the checkbox isn't checked
}
});
Any browser sets the checked attribute of an input element to the value "checked" if the checkbox is checked, and sets it to null (or deletes the attribute) if the checkbox is not checked.
why not using $.is() ?
$('input#myId').change(
function() {
if ($(this).is(':checked')) {
// do stuff here
} else {
// do other stuff here
}
});
This is an answer by MorningZ (I found it here) that makes totally sense:
The part you are missing is that "checkbox" is a jQuery object, not a
checkbox DOM object
so:
checkbox.checked sure would error because there is no .checked property of a jQuery
object
so:
checkbox[0].checked would work since the first item on a jQuery array is the DOM object
itself.
So in your change() function you can use
$(this)[0].checked
$('input#myId').toggle(
function(e){
e.preventDefault();
//do stuff
$(this).attr('checked', 'true');
},
function(e){
e.preventDefault();
//do other stuff
$(this).attr('checked', 'false');
}
);
this worked for me............ check it
$(":checkbox").click(function(){
if($(this).attr("id").split("chk_all")[1])
{
var ty = "sel"+$(this).attr("id").split("chk_all")[1]+"[]";
if($(this).attr("checked"))
{
$('input[name="'+ty+'"]').attr("checked", "checked");
}
else
{
$('input[name="'+ty+'"]').removeAttr("checked");
}
}
})
I did a similar approach but simply using the checked attribute such as
//toggles checkbox on/off
$("input:checkbox").change(
function(){
if(!this.checked){
this.checked=true;
}
else{
this.checked=false;
}
}
);
//end toggle
$("input[type=checkbox][checked=false]")// be shure to set to false on ready
$("input#Checkbox1").change(function() {
if ($(this).attr("checked")) {
$("#chk1").html("you just selected me")//the lable
} else {$("#chk1").html("you just un selected me") }
});
Try using a non-jquery function:
function chkboxToggle() {
if ($('input#chkbox').attr('checked'))
// do something
else
// do something else
}
then in your form:
<input id="chkbox" type="checkbox" onclick="chkboxToggle()" />
Try:
$(":checkbox").click(function(){
if($(this).attr("checked"))
{
$('input[name="name[]"]').attr("checked", "checked");
}
else
{
$('input[name="name[]"]').removeAttr("checked");
}
})

Show/hide a select field on Edit page, based on database value

In one of "Add product" page, I've select field that shows/hides based on what we select on another select field. This is the code:
$(function() {
$('#warranty_periods').show();
$('#warranty_type').change(function(){
if($('#warranty_type').val() == '1') {
$('#warranty_periods').show();
} else {
$('#warranty_periods').hide();
}
});
});
My problem is how to hide it on the edit page if "warranty_type" was other than '1' while adding the product.
Thanks
If you want the same logic to be invoked when the page loads, then do exactly that. For example, you can define a function that you would use for the event you currently have as well as be immediately invoked. Something like this:
$(function() {
var toggleWarrantyPeriod = function(){
if($('#warranty_type').val() == '1') {
$('#warranty_periods').show();
} else {
$('#warranty_periods').hide();
}
};
toggleWarrantyPeriod();
$('#warranty_type').change(toggleWarrantyPeriod);
});
Try to logout the value of warranty_type using
console.log($('#warranty_type').val());
Check if you are getting the desired value

Uncheck a Checkbox using Jquery

I have a page with a list of check boxes, when a check box is checked I am updating the number of check boxes selected in side a p tag. This is all working.
The problem I have is when the user selects more than 5 checkboxes I want to use Jquery to unselect it.
This is what I have so far, the first if else works but the first part of the if doe
$("input").click(function () {
if ($("input:checked").size() > 5) {
this.attr('checked', false) // Unchecks it
}
else {
$("#numberOfSelectedOptions").html("Selected: " + $("input:checked").size());
}
});
Any ideas?
Firstly you should use the change event when dealing with checkboxes so that it caters for users who navigate via the keyboard only. Secondly, if the number of selected checkboxes is already 5 or greater you can stop the selection of the current checkbox by using preventDefault(). Try this:
$("input").change(function (e) {
var $inputs = $('input:checked');
if ($inputs.length > 5 && this.checked) {
this.checked = false;
e.preventDefault();
} else {
$("#numberOfSelectedOptions").html("Selected: " + $inputs.length);
}
});
Example fiddle
Note I restricted the fiddle to 2 selections so that it's easier to test.
You need this $(this).prop('checked', false);
You should be saying
$(this).attr('checked', false)
instead of
this.attr('checked', false)
You need this $(this).prop('checked', false);
Also this is a javascript object, if you want to use jquery you should prefer $(this).

Set of actions before enabling submit button

I want my form to meet a set of criterias before the submit button gets enabled, my form is in this order:
Text field, value has to be over 150
Set of radio selects, 1 has to be selected
TOS box, has to be checked
So far I have this:
if ((parseInt($('#amount').val(), 10) > 149) && $('input:radio[name="radioset1"]').is(':checked') && ($('input.checkbox_check').is(':checked')))
{
// Enable Button here
}
Do I have to add this to everything I'm checking, for example keyup on the textfield, change on the select and checkbox and set true in variables that those fields are "OK" or how do I do it ?
You need to create a custom validate function, which you have to run onchange of your text field, and on click of your radio and checkbox click event.
Following psudo code might help you.
var textFieldValidationPassed = false;
function validateFormFields() {
//First checks if text field length is not less then 150.
// then check if one of the radio button is selected.
// then check for TOS box checked state;
if (textFieldValidationPassed && $('input:radio[name="radioset1"]').is(':checked') && ($('input.checkbox_check').is(':checked')))
// enable submit button;
}
}
$('input:radio[name="radioset1"]', 'input.checkbox_check').click(function() {
validateFormFields();
})
$('#amount').keyup(function(){
if($(this).val().length > 149) {
textFieldValidationPassed =true;
validateFormFields();
}
})
it is a workaround but will work, make submit button initially...
$(":submit").on('focus',Validate);
function Validate(){
if ((parseInt($('#amount').val(), 10) > 149) && $('input:radio[name="radioset1"]').is(':checked') && ($('input.checkbox_check').is(':checked')))
{
// Enable Button here
}
else
{
//Disable button
}
}
You can just add click, change events at once like this
$("input").on("change, click", function(){
});
Write your logic within this.
Also you've checkbox validation wrong. Check box will be clicked.
$('input.checkbox_check').prop('checked')
Here is the complete code
$(function(){
$("input").on("change, click", function(){
if ((parseInt($('#UserName').val(), 10) > 149) && $('input:radio[name="gender"]').is(':checked') && $("#remember").prop('checked'))
{
$("#submit").removeAttr("disabled");
}
else{
$("#submit").attr("disabled", "disabled");
}
});
});
WORKING FIDDLE
You can use jQuery.validate. You can define custom validation methods too.
http://jqueryvalidation.org
You can use HTML5 validation. For example:
<input type="checkbox" required name="checkbox1" />
<input type="text" min="150" name="input1" />
You can see another example here http://www.w3schools.com/html/html5_form_attributes.asp
You can call it at textbox, radiobutton and checkbox onchange events.
EDIT:
$(document).ready(function () {
$("input").change(function () {
//call function.
});
});

jQuery checkbox click shows input field - doesn't work

I use a jQuery function to show certain hidden text fields once you select something from a select box.
This works fine for select boxes but I can't get it to work for a checkbox.
Here is the stripped code I tried (in a nutshell) but it's not working: http://jsbin.com/uwane3/2/
Thanks for your help, I rarely use JS so my knowledge is small.
I have found 2 errors in your code:
your Checkbox has no value so you cant get more than an empty result form ".val()"
you have not bind a eventhandler to the checkbox.
http://jsbin.com/uwane3/3
$('#cf3_field_9').live('click', function(e){
if (e.target == $('#cf3_field_9')[0] && e.target.checked) {
alert('The following line could only work if the checkbox have a value.');
$.viewMapcf3_field_9[$(this).val()].show();
} else {
$.each($.viewMapcf3_field_9, function() { this.hide(); });
}
});
You have no events registered to your checkbox.
Register a click, or change handler like this:
$('#cf3_field_9').click(function(){
if ($(this).attr("checked")) {
$.viewMapcf3_field_9[$(this).val()].show();
} else {
$.each($.viewMapcf3_field_9, function() { this.hide(); });
}
});
http://api.jquery.com/category/events/

Categories