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POjQuery get parent optgroup
 

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    <p>I'd like to detect if the selection option is under the 'international' optgroup. Right now my approach is to detect the closest optgroup from the selected item, and get the contents of its label attribute. I could test that string for the word 'international'. Other approaches are more then welcome. </p> <p>As you can tell, from this markup its unfortunate that the optgroup doesn't wrap the child options:</p> <pre><code>&lt;select id="venue"&gt; &lt;optgroup label="New England"&gt;&lt;/optgroup&gt; &lt;option value="1"&gt;&amp;nbsp;NH&lt;/option&gt; &lt;option value="2"&gt;&amp;nbsp;ME&lt;/option&gt; &lt;option value="3"&gt;&amp;nbsp;VT&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;MA&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;CT&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;RI&lt;/option&gt; &lt;optgroup label="International"&gt;&lt;/optgroup&gt; &lt;option value="100"&gt;Canada&lt;/option&gt; &lt;option value="100"&gt;Texas&lt;/option&gt; &lt;option value="100"&gt;Mexico&lt;/option&gt; &lt;/select&gt; </code></pre> <p>The jQuery I've been working with obviously wont work, but you can see where I am trying to get to:</p> <pre><code>dropdownval = jQuery('select#venue option:selected') .parentsUntil( jQuery('optgroup'), '[label*="international"]') .attr('label');` </code></pre> <p><strong>EDIT</strong></p> <p>Its been pointed out to me that the following nesting of optgroups is also possible</p> <pre><code>&lt;select id="venue"&gt; &lt;optgroup label="New England"&gt;&lt;/optgroup&gt; &lt;option value="1"&gt;&amp;nbsp;NH&lt;/option&gt; &lt;option value="2"&gt;&amp;nbsp;ME&lt;/option&gt; &lt;option value="3"&gt;&amp;nbsp;VT&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;MA&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;CT&lt;/option&gt; &lt;option value="4"&gt;&amp;nbsp;RI&lt;/option&gt; &lt;optgroup label="International"&gt;&lt;/optgroup&gt; &lt;option value="100"&gt;&amp;nbsp;Canada&lt;/option&gt; &lt;option value="100"&gt;&amp;nbsp;Texas&lt;/option&gt; &lt;option value="100"&gt;&amp;nbsp;Mexico&lt;/option&gt; &lt;optgroup label="&amp;nbsp;Europe"&gt;&lt;/optgroup&gt; &lt;option value="100"&gt;&amp;nbsp;&amp;nbsp;Bruges&lt;/option&gt; &lt;/select&gt; </code></pre>
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    1. USMatthew Wilcoxson
    1. USorionrush
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    1. CO`.prevUntil` is what you need, not `.parentsUntil`, since the optgroup is not a parent.
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      1. USBarmar
    2. COgood shout, but `dropdownval` still returns as `undefined`
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      1. USorionrush
    3. COI didn't realize `prevUntil` stops _before_ the matched element, not including it. See my answer.
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      1. USBarmar
 

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