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POhow do you select all checkboxes when user clicks a button
 

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  1. POhow do you select all checkboxes when user clicks a button
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    <p>i have a form with a "Select All" button and a bunch of checkboxes. i want to have it select all checkboxes when the user clicks the "Select All" button.</p> <p>is there elegant way in jquery to do this?</p> <p>EDIT #2: i have isolated the problem down to this code; style="display: none;". if i remove this code it works fine. any ideas?</p> <p>EDIT: The answers below work in my test form but the button in this case is inside of a form that is inside of a div that only shows up as part of a simpledialog.show(). in this case, for some reason when i click on the button i dont see anything happen:</p> <p>javascript:</p> <pre><code>&lt;script type="text/javascript"&gt; $(document).ready(function() { $('#sdHc3').simpleDialog({ showCloseLabel: false, open: function() { $('#checkboxStatus').html(''); }, close: function() { var c = []; $('#checkboxForm :checkbox:checked').each(function() { c.push($(this).val()); }); $('#checkboxStatus').html('&amp;nbsp;&amp;nbsp;Checked &lt;b&gt;' + c.join(', ') + '&lt;/b&gt;.').show(); } }); }); </code></pre> <p> </p> <pre><code>&lt;script type="text/javascript"&gt; $(function() { $('#selectAll').click(function() { var select_all = (this.value === 'Select All'); $(':checkbox').attr('checked', select_all); this.value = (select_all) ? 'Deselect All' : 'Select All'; }); }); </code></pre> <p></p> <p>body:</p> <pre><code>&lt;div style="display: none;" class="scrollableDiv" id="simpleDialog3"&gt; &lt;h3&gt;DEMO3&lt;/h3&gt; &lt;form id="checkboxForm"&gt; &lt;input type="button" id="selectAll" value="TT" /&gt; &lt;input type="checkbox" class="chckbx" value="1" /&gt;&lt;br /&gt; &lt;input type="checkbox" class="chckbx" value="1" /&gt;&lt;br /&gt; &lt;/form&gt; &lt;p&gt; &lt;a href="#" class="close"&gt;Close&lt;/a&gt;&lt;/p&gt; &lt;/div&gt; </code></pre> <p>any idea why it wouldn't work in this case?</p>
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