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    <p>You could use the jQuery <a href="http://api.jquery.com/change/" rel="nofollow noreferrer"><code>.change()</code></a> function.</p> <p>After the page initially loads, you can validate the entire form, just to check that it is in fact not filled in. After that you can use <a href="http://api.jquery.com/change/" rel="nofollow noreferrer"><code>.change()</code></a> to check if things have changed on the form, and if anything has changed, validate the form again.</p> <pre><code>$(document).ready(function() { // validate form once, just to be sure (if valid, activate submit button) }); ... &lt;form&gt; &lt;input class="target" type="text" value="Field 1" /&gt; &lt;select class="target"&gt; &lt;option value="option1" selected="selected"&gt;Option 1&lt;/option&gt; &lt;option value="option2"&gt;Option 2&lt;/option&gt; &lt;/select&gt; &lt;/form&gt; &lt;script type="text/javascript"&gt; $('.target').change(function() { alert('Something changed'); // Try validating form again (if valid, activate submit button) }); &lt;/script&gt; </code></pre> <hr> <p><strong>Plan B</strong></p> <p>Another option is to always have the submit button clickable, but use <a href="http://api.jquery.com/submit/" rel="nofollow noreferrer"><code>.submit()</code></a> to bind it to the form validator. Then if the form IS valid, carry on. If the form IS NOT valid use <a href="http://api.jquery.com/event.preventDefault/" rel="nofollow noreferrer"><code>.preventDefault()</code></a> to stop the submission of the form..... and you'd display a warning message too, indicating the missing fields.</p>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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