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POLimit Checkboxes to Only Three Checkboxes - How?
 

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    <p>I have many checkboxes on a form. I need to limit the total to three checkboxes selected and no more. I had code that worked but I just upgraded my forms to Foundation Custom Forms and my script no longer works and I cannot get it to work. </p> <p>How do I re-write the script to work?</p> <p>Here is the current script: </p> <pre><code>$(function(){ var max = 3; var checkboxes = $('input[type="checkbox"]'); checkboxes.click(function(){ var $this = $(this); var set = $this.add($this.prevUntil('label')).add($this.nextUntil('label')); var current = set.filter(':checked').length; return current &lt;= max; }); }); </code></pre> <p>Here is the form code: </p> <pre><code>&lt;label&gt;Effects &lt;span class="red"&gt;required&lt;/span&gt;&lt;/label&gt; &lt;label for="CAT_Custom_365571_0"&gt;&lt;input type="checkbox" value="Creative" id="CAT_Custom_365571_0" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Creative&lt;/label&gt; &lt;label for="CAT_Custom_365571_1"&gt;&lt;input type="checkbox" value="Euphoric" id="CAT_Custom_365571_1" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Euphoric&lt;/label&gt; &lt;label for="CAT_Custom_365571_2"&gt;&lt;input type="checkbox" value="Uplifted" id="CAT_Custom_365571_2" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Uplifted&lt;/label&gt; &lt;label for="CAT_Custom_365571_3"&gt;&lt;input type="checkbox" value="Energetic" id="CAT_Custom_365571_3" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Energetic&lt;/label&gt; &lt;label for="CAT_Custom_365571_4"&gt;&lt;input type="checkbox" value="Lazy" id="CAT_Custom_365571_4" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Lazy&lt;/label&gt; &lt;label for="CAT_Custom_365571_5"&gt;&lt;input type="checkbox" value="Focused" id="CAT_Custom_365571_5" name="CAT_Custom_365571" style="display: none;"&gt; &lt;span class="custom checkbox"&gt;&lt;/span&gt; Focused&lt;/label&gt; &lt;!-- MORE CHECKBOXES --&gt; </code></pre> <p>Obviously when I changed the forms I broke the script. How do I fix this?</p>
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    1. COYou just have to find how many are selected on the click event. Basically you have to use a different selector relative to the checkbox. Grab the parent of the clicked checkbox then the siblings and then children of those siblings to count how many are checked.
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      1. USelclanrs
    2. COIf they're inside a single element (say with `id='foo'`) you could do: `document.querySelectorAll('#foo input[type="checkbox"]:checked').length > 3` and you're done. In jQuery maybe `$('#foo input[type="checkbox"]:checked').length > 3`. If there's more than 3 checked, show a message so the user can fix it.
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      1. POLimit Checkboxes to Only Three Checkboxes - How?
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    3. COIf the checkboxes are not actually clicked by the user but a script setting the state then you can't do much because the `click` function on the checkbox will not get triggered
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      1. POLimit Checkboxes to Only Three Checkboxes - How?
      1. USArun P Johny
 

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