I have a form which contains buttons to add and delete rows. My javascript function to check all checkboxes works for the first row, but once I add more rows to the form, the first row is still the only one that gets checked.
Any tips?
Here is my javascript function:
<code>
//checks all rows
function checkAll() {
var masterCheck = document.getElementById('masterCheck');
var on = false;
if(masterCheck.checked==true) {
document.getElementById('checkbox').checked=true;
} else {
document.getElementById('checkbox').checked=false;
}
}
</code>
And here is the form:
http://crimsonroot.com/files/freelance/new.html
Any help is appreciated!
I found out what was wrong! #Mohammed your answer really helped. There were just one or two syntax errors that I found. In order to check and uncheck all of the boxes, I needed to add a boolean variable as an input to the function as follows:
//checks all rows
function checkAll(bool) {
var masterCheck = document.getElementById('masterCheck');
var allcheck = document.getElementsByClassName('checkbox');
var on = false;
for (var i = 0; i < allcheck.length; i++) {
if (masterCheck.checked == true) {
allcheck[i].checked = true;
} else {
allcheck[i].checked = false;
}
}
}
For some reason, this was the final piece to the puzzle. Thanks for all of the help!
You should try something like this.
$("#masterCheck").click(function () {
$('input:checkbox').not(this).prop('checked', this.checked);
});
Since document.getElementById() returns first element, because id cannot be used more than one. To make it usable, add a class checkbox and try the following code:
//checks all rows
function checkAll() {
var masterCheck = document.getElementById('masterCheck');
var allcheck = getElementsByClassName('checkbox');
var on = false;
for (var i = 0; i < allcheck.length; i++) {
if (masterCheck.checked == true) {
allchecked[i].checked = true;
} else {
allchecked[i].checked = false;
}
}
}
Related
I've created a simple table where I have the option to select all checkboxes. I would like to have the option to hide individual rows, or hide all the rows when using the select all function. I've managed to get the checkboxes working, but I can't figure out why the table isn't responding to the action. I appreciate any help or insight.
The full code is in this Fiddle. Here is a glance at the jquery and javascript:
<script>
$(document).ready(function() {
$('input[type="checkbox"]').change(function() {
var inputValue = $(this).attr("value");
$("." + inputValue).toggle();
});
});
</script>
<script>
function checkedAll() {
var elements = this.form.getElementsByTagName('input');
// iterate and change status
for (var i = elements.length; i--;) {
if (elements[i].type == 'checkbox') {
elements[i].checked = this.checked;
}
}
}
</script>
<script>
$(document).ready(function() {
$('input[type="checkbox"]').change(function() {
var inputValue = $(this).attr("value");
var checked = $(this)[0].checked;
$("tr").each(function() {
if($(this).find("td:eq(0)").html() === inputValue.toString()) { // this checks the first cell of each row of the table for a match
if(checked) { //instead of just toggling, you check the status and then show/hide
$(this).hide();
} else {
$(this).show();
}
}
});
});
});
</script>
<script>
function checkedAll() {
var elements = this.form.getElementsByTagName('input');
// iterate and change status
for (var i = elements.length; i--;) {
if (elements[i].type == 'checkbox') {
elements[i].checked = this.checked;
$(elements[i]).trigger("change"); // this triggers the function above
}
}
}
</script>
This should work for you. The .each loop will iterate through the rows and hide the ones where the first td is the value to be hidden.
Im trying to prevent duplicated values on inputs with same name when I click a submit button, but it is not working and i am not sure why...
I need some help to understand why is not working?
Thanks lot in advance!
this is my code:
I tried with a solution I found here which it worked "on input change" behavior, but it doesnt with button click...
My button:
<button type="button" id="approve" class="positive valid" tabindex="-1">Approve</button>
and my jquery
$('#received').on('click',function() {
var $current = $(this);
if ($('input[name^="RE_SignedByID"]').val() == $current.val() && $('input[name^="RE_SignedByID"]').attr('tabindex') !== $current.attr('tabindex') ) {
alert('You can not have duplicated ID´s');
return false;
}else {
return true;
}
});
I want to show an alert and prevent the submit.
Thanks a lot for any help!
The issue is because you're comparing the value of the clicked button to the first input[name^="RE_SignedByID"] element.
To fix this you could instead create an array of all the input[name^="RE_SignedByID"] values using map(). You can then dedupe this list and compare the resulting array lengths. If they are different there was a duplicate. Try this:
$('#received').on('click', function(e) {
var values = $('input[name^="RE_SignedByID"]').map(function() {
return this.value.trim();
}).get();
var unique = [...new Set(values)];
if (values.length != unique.length) {
e.preventDefault();
alert('You can not have duplicated ID\'s');
}
});
Note that [...new Set(values)] will not work in IE. If you need to support legacy browsers there are plenty of alternatives to dedupe an array. See this answer for more information.
I could fix it! Here is the code... you can add a button event like:
$('#submit').on('click', function () {
var values = $('[name=RE_SignedByID]').map(function() {
return this.value.trim();
}).get();
var values2= $('[name=RE_OwnersID]').map(function() {
return this.value.trim();
}).get();
values.sort();
values2.sort();
for (var i = 0; i < values.length-1; i++) {
if( values[i] == values[i+1] && values[i] !=""){
showAlert(translator.getTranslation(' You can not have duplicated signers ID\'s'));
return false;
// break;
}
}
for (var i = 0; i < values2.length-1; i++) {
if( values2[i] == values2[i+1] && values2[i] !=""){
showAlert(translator.getTranslation(' You can not have duplicated owners ID\'s'));
return false;
// break;
}
}
});
How can I disable a anchor link if one(1) of my six(6) checkbox is not check?
var first_option = $('#pid-1590083, #pid-1590090, #pid-1590091, #pid-1590092, #pid-1590093, #pid-1590094');
$("a").click(function(e) {
if($("first_option").prop("checked") === false) {
e.preventDefault(); return false;
} else {return true;};
});
Your current logic doesn't work as you're only looking at the checked property of the first element you select, not all of them.
To achieve what you require, you can use the :checked selector to get all the checked elements within the selectors you provide, then check the length property of the result to see if there aren't any. Try this:
var $first_option = $('#pid-1590083, #pid-1590090, #pid-1590091, #pid-1590092, #pid-1590093, #pid-1590094');
$("#tmp_button-99035").click(function(e) {
if ($first_option.filter(':checked').length === 0) {
e.preventDefault();
alert('Please Choose Collar Colour To Continue');
};
});
first_option.prop("checked") will always check for first element. What you have to do is loop over all elements to check
Like this
$("#tmp_button-99035").click(function(e) {
var isChecked = false;
for (var i = 0; i < first_option.length; i++) {
if (first_option.eq(i).prop("checked")) {
isChecked = true;
break;
}
}
if (!isChecked) {
alert('Please Choose Collar Colour To Continue');
e.preventDefault();
}
return isChecked;
});
Well, the js snippet of yours is only checking the first element. So, you have to track other checkboxes as well for correct result.
var first_option = $('#pid-1590083, #pid-1590090, #pid-1590091, #pid-1590092, #pid-1590093, #pid-1590094')
$(document).on('click', '#tmp_button-99035', function (e) {
if ($(first_option).filter(":checked").length == 0) {
e.preventDefault();
}
});
Would anyone know of a ready-made script or plugin providing:
-Shift click for check/uncheck all in range
-CTRL click to select or unselect all
That can works off the check inputs 'name' (instead of all on a page or all inside a div):
input[name='user_group[]']
input[name='record_group[]']
I've been using a couple of scripts (javascript and jQuery) but they're based on all checkboxes in a div or table and I'm not smart enough to roll my own or modify another script. Google searching on this has been a little difficult (too many common terms I think)...
Thanks Much Appreciated!
I started playing around with this script, although it's missing a CTRL+Click feature (select all/none control).
In it's original form it works against all checkboxes on a page. I changed the "$('input[type=checkbox]').shiftClick();" linke to "$("input[name='selected_employees[]']").shiftClick();" and as far as I can tell it seems to be working perfectly now against only the single checkbox group.
The only flaw (for my requirements) is there is not a CTRL+Click function to toggle check or un-check all checkboxes in the group.
<script type="text/javascript">
$(document).ready(function() {
// shiftclick: http://sneeu.com/projects/shiftclick/
// This will create a ShiftClick set of all the checkboxes on a page.
$(function() {
$("input[name='selected_employees[]']").shiftClick();
// $('input[type=checkbox]').shiftClick();
});
(function($) {
$.fn.shiftClick = function() {
var lastSelected;
var checkBoxes = $(this);
this.each(function() {
$(this).click(function(ev) {
if (ev.shiftKey) {
var last = checkBoxes.index(lastSelected);
var first = checkBoxes.index(this);
var start = Math.min(first, last);
var end = Math.max(first, last);
var chk = lastSelected.checked;
for (var i = start; i < end; i++) {
checkBoxes[i].checked = chk;
}
} else {
lastSelected = this;
}
})
});
};
})(jQuery);
});
</script>
I believe this should work!
Working demo on jsFiddle: http://jsfiddle.net/SXdVs/3/
var firstIndex = null;
$(":checkbox").click(function(e) {
$this = $(this);
if (e.ctrlKey) {
if ($this.is(":checked")) {
$("input[name='"+ $this.attr("name") +"']").attr("checked", "checked");
} else {
$("input[name='"+ $this.attr("name") +"']").removeAttr("checked");
}
} else if (e.shiftKey) {
$items = $("input[name='"+ $this.attr("name") +"']");
if (firstIndex == null) {
firstIndex = $items.index($this);
} else {
var currentIndex = $items.index($this);
var high = Math.max(firstIndex,currentIndex);
var low = Math.min(firstIndex,currentIndex);
if ($this.is(":checked")) {
$items.filter(":gt("+ low +"):lt("+ high +")").attr("checked", "checked");
} else {
$items.filter(":gt("+ low +"):lt("+ high +")").removeAttr("checked");
}
firstIndex = null;
}
}
});
Is there a way to check a form before submitting it to see if ANY of the checkboxes have been checked in Javascript?
Something like...
function checkboxcheck(){
/*something in here to check name="brands[]" checkbox array?*/
}
Basically I just want it to alert me if 0 checkboxes were selected. 1 or more is required.
I would call this function on submit.
Thanks much!!
You could do something like this:
function anyCheckboxesChecked() {
var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; ++i) {
if (inputs[i].type === "checkbox" && inputs[i].checked)
return true;
}
return false;
}
Then you could call that function from your "submit" handler"
if (!anyCheckboxesChecked()) {
alert("Please check one of the appealing checkboxes on the page");
return false;
}
If your page is more complicated than what this implies (like, if there are multiple forms), then you'd find the appropriate form first and call .getElementsByTagName() from that point instead of from document.
How about:
function checkboxcheck(name) {
var els = document.getElementsByName(name);
for (var i = 0; i < els.length; i++) {
if (els[i].checked) {
return true;
}
}
return false;
}
using getElementsByName().
Usage:
var valid = checkboxcheck("brands[]");
Here's an example: http://jsfiddle.net/andrewwhitaker/2saJp/1/