I have a bunch of checkboxes like this. If the "Check Me" checkbox is checked, all the other 3 checkboxes should be enabled, else they should be disabled. How can I do this using jQuery?
<form name="frmChkForm" id="frmChkForm">
<input type="checkbox" name="chkcc9">Check Me
<input type="checkbox" name="chk9[120]">
<input type="checkbox" name="chk9[140]">
<input type="checkbox" name="chk9[150]">
</form>
Change your markup slightly:
$(function() {
enable_cb();
$("#group1").click(enable_cb);
});
function enable_cb() {
if (this.checked) {
$("input.group1").removeAttr("disabled");
} else {
$("input.group1").attr("disabled", true);
//You can use like this to set Attribute
//$("input.group1").attr("disabled", "true");
}
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form name="frmChkForm" id="frmChkForm">
<input type="checkbox" name="chkcc9" id="group1">Check Me <br>
<input type="checkbox" name="chk9[120]" class="group1"><br>
<input type="checkbox" name="chk9[140]" class="group1"><br>
<input type="checkbox" name="chk9[150]" class="group1"><br>
</form>You can do this using attribute selectors without introducing the ID and classes but it's slower and (imho) harder to read.
$(this).change on the click event of the first checkbox.
.prop() instead of .attr().
This is the most up-to-date solution.
<form name="frmChkForm" id="frmChkForm">
<input type="checkbox" name="chkcc9" id="group1" />Check Me
<input type="checkbox" name="chk9[120]" class="group1" />
<input type="checkbox" name="chk9[140]" class="group1" />
<input type="checkbox" name="chk9[150]" class="group1" />
</form>
$(function() {
enable_cb();
$("#group1").click(enable_cb);
});
function enable_cb() {
$("input.group1").prop("disabled", !this.checked);
}
Here is the usage details for .attr() and .prop().
Use the new .prop() function:
$("input.group1").prop("disabled", true);
$("input.group1").prop("disabled", false);
The .prop() function is not available, so you need to use .attr().
To disable the checkbox (by setting the value of the disabled attribute) do
$("input.group1").attr('disabled','disabled');
and for enabling (by removing the attribute entirely) do
$("input.group1").removeAttr('disabled');
If you're working with just one element, it will always be fastest to use DOMElement.disabled = true. The benefit to using the .prop() and .attr() functions is that they will operate on all matched elements.
// Assuming an event handler on a checkbox
if (this.disabled)
<form name="frmChkForm" id="frmChkForm">
<input type="checkbox" name="chkcc9" id="chkAll">Check Me
<input type="checkbox" name="chk9[120]" class="chkGroup">
<input type="checkbox" name="chk9[140]" class="chkGroup">
<input type="checkbox" name="chk9[150]" class="chkGroup">
</form>
$("#chkAll").click(function() {
$(".chkGroup").attr("checked", this.checked);
});
With added functionality to ensure the check all checkbox gets checked/dechecked if all individual checkboxes are checked:
$(".chkGroup").click(function() {
$("#chkAll")[0].checked = $(".chkGroup:checked").length == $(".chkGroup").length;
});
Here's another sample using JQuery 1.10.2
$(".chkcc9").on('click', function() {
$(this)
.parents('table')
.find('.group1')
.prop('checked', $(this).is(':checked'));
});
$(document).ready(function() {
$('#InventoryMasterError').click(function(event) { //on click
if (this.checked) { // check select status
$('.checkerror').each(function() { //loop through each checkbox
$('#selecctall').attr('disabled', 'disabled');
});
} else {
$('.checkerror').each(function() { //loop through each checkbox
$('#selecctall').removeAttr('disabled', 'disabled');
});
}
});
});
$(document).ready(function() {
$('#selecctall').click(function(event) { //on click
if (this.checked) { // check select status
$('.checkbox1').each(function() { //loop through each checkbox
$('#InventoryMasterError').attr('disabled', 'disabled');
});
} else {
$('.checkbox1').each(function() { //loop through each checkbox
$('#InventoryMasterError').removeAttr('disabled', 'disabled');
});
}
});
});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="checkbox" id="selecctall" name="selecctall" value="All" />
<input type="checkbox" name="data[InventoryMaster][error]" label="" value="error" id="InventoryMasterError" />
<input type="checkbox" name="checkid[]" class="checkbox1" value="1" id="InventoryMasterId" />
<input type="checkbox" name="checkid[]" class="checkbox1" value="2" id="InventoryMasterId" />