Question

I have a table with checkboxes and I want to do the “check all” and “un-check all” checkboxes but I could not find the way to check all the checkboxes.

Here is my code:

<form>
    <?php foreach ($this->entries as $entry): ?>
        <tr class="table_head_seperator">
            <td class="grid_info" width="32px" bgcolor="#f6f6f6"><input type="checkbox" class="chk_boxes1" name="to_delete[<?PHP echo $entry['id'] ?>]"  /></td>
            <td class="grid_info" width="160px" bgcolor="#eeeeee"><span class="country_name"><?php echo $entry['user_name'] ?></span></td>
            <td class="grid_info" width="130px" bgcolor="#eeeeee"><span class="country_name"><?php echo $entry['date_created'] ?></span></td>
            <td class="grid_info" width="100px" bgcolor="#f6f6f6"><span class="country_name"><?php echo $entry['user_type_name'] ?></span></td>
        </tr>
    <?PHP endforeach; ?>

    <input type="checkbox" class="chk_boxes" label="check all"  />check all
    <input type="checkbox" class="unchk_boxes"   /> un-check all
</form>
<script type="text/javascript">
    $(document).ready(function() {
        $('.chk_boxes').click(function(){
            $('.chk_boxes1').attr('checked',checked)
        })
    });
</script> 

Answer 1

$(function() {
    $('.chk_boxes').click(function() {
        $('.chk_boxes1').prop('checked', this.checked);
    });
});

This only affects the check all box. But why would you want to use two checkboxes anyway? One to check all and one to uncheck all, but not mutually exclusive. That’s got to be the recipe to confuse users 🙂