checking checkbox values onclick (my code not working!)

Question

hello I have problem in reading and sending checkbox value I tried using ajax but it didn't work what the wrong with my ajax????!!! " what I really need is to retrieve the value " . $row['ID'] . " and write statement to insert value to the db in case it was checked ?!"

function defaultt(id) {
        $.ajax({

            type : "POST",
            data : "id=" + id,
            url : "defaultt.php",
            success : function(msg) {
                $('#' + id).fadeOut(300);
            }
        });

code:

<td><form><input type="checkbox" name="state" id="state"class="check"  checked onClick='javascript:defaultt(" . $row['ID'] . ");' >

retrieve code in other page.php:

<?php $id1 = intval($_POST['id']);

if (isset($id1)) {} ?>

I also used this code but didn't work :(

    <?php if ($_POST['state']){?>
 <script type=text/javascript>
function validate(){
if(state.checked == 1){
      alert("checked") ;}else{
 alert("You didn't check it! Let me check it for you.")
 }
 }
 </script>
  <?php}?>

What does 'it didn't work' mean? An error? The wrong data? Some of the right data? Too much data? — andrewsi
– andrewsi, Commented Oct 11, 2013 at 12:22
In the first version of your function you pass in an id but don't ever check the current checked state of the checkbox. Note also that you don't need the javascript: label in an inline event attribute. — nnnnnn
– nnnnnn, Commented Oct 11, 2013 at 12:33
yah sorry I should write: $id1 = intval($_POST['id']); if (isset($id1)) but still not work :( — user2790300
– user2790300, Commented Oct 11, 2013 at 12:43

Amit · Accepted Answer · 2013-10-11 12:23:50Z

1

Try this

    function validate(){
    if($("#state").is(":checked")){
        alert("checked") ;
      }
      else{
        alert("You didn't check it! Let me check it for you.")
    }
 }

Demo

answered Oct 11, 2013 at 12:23

Amit

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2 Comments

David Fregoli Over a year ago

$("#state").prop('checked') is an alternative

user2790300 Over a year ago

thanks for your time but I put this function in the header section but didn't work and what I really need is to retrieve the value " . $row['ID'] . " :( any idea?

user2663434 · Accepted Answer · 2013-10-11 12:38:18Z

0

HTML

<input type="checkbox" name="check" id="check"/>

JS

$('#check').change(function() {

    var $check = $(this),
        $div = $check.parent();

    if ($check.prop('checked')) {
        alert("Check");
        $div.addClass('test');

    } else {
        alert("Uncheck");
        $div.removeClass('test');

    }

});

demo

answered Oct 11, 2013 at 12:38

user2663434

1 Comment

nnnnnn Over a year ago

Why use $check.prop('checked') when you can just say this.checked?

Nandakumar · Accepted Answer · 2013-10-11 12:47:00Z

0

To check Checkbox true: ($('#id').prop('checked') == true)
$('#state').on('click',function(){

if ($('#state').prop('checked') == true)
  {
 alert('checked');
  }
    else
      { alert('Not checked'); }
});

Demo

answered Oct 11, 2013 at 12:47

Nandakumar

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