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PODjango form submit button's onclick does not call JavaScript function
 

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  1. PODjango form submit button's onclick does not call JavaScript function
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    <p>I have a Django form that needs to do some client-side validation before submitting the form. This is the code in the template:</p> <pre><code>&lt;form action="/{{ blog_entry.id }}/addComment/" method="post"&gt; {{ commentForm.name.label_tag }} {{ commentForm.name }} &lt;span id="spanNameReq" style="color:Red; display:none;"&gt;Required&lt;/span&gt; &lt;br /&gt; {{ commentForm.email.label_tag }} {{ commentForm.email }} &lt;span id="spanEmailReq" style="color:Red; display:none;"&gt;Required&lt;/span&gt; &lt;span id="spanEmailInvalid" style="color:Red; display:none;"&gt;Invalid e-mail address&lt;/span&gt; &lt;br /&gt; {{ commentForm.website.label_tag }} {{ commentForm.website }} &lt;span id="spanWebsiteInvalid" style="color:Red; display:none;"&gt;Invalid URL&lt;/span&gt; &lt;br /&gt; {{ commentForm.comment.label_tag }} &lt;span id="spanCommentReq" style="color:Red; display:none;"&gt;Required&lt;/span&gt; &lt;br /&gt; {{ commentForm.comment }} &lt;br /&gt; &lt;input type="submit" value="Add comment" onclick="javascript:var ret = validateComment(); return ret;" /&gt; &lt;/form&gt; </code></pre> <p>But the problem is that validateComment does not get called at all, and the form gets submitted straight away. Strangely enough if I replace the onclick event with</p> <pre><code>javascript:alert('test'); </code></pre> <p>or</p> <pre><code>javascript:return false; </code></pre> <p>that JS code gets executed fine (and in the second case it won't submit the form).</p> <p>Why does it not execute the function I specified? Just to confirm that I have included the script file in the HTML head (including the JS code embedded in the template does not make a difference), and if I don't use a Django form, but a normal HTML form it works fine.</p>
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    1. USTom van Enckevort
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    1. COI can't say why it doesn't work, but you should consider using the `onsubmit` event of the form, instead of `onclick` on the submit button. That way it will work if you press enter to submit the form as well, once you get it working.
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      1. PODjango form submit button's onclick does not call JavaScript function
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    2. CO@nlogax: yes, I realized that as well when joeformd posted a similar suggestion below. Unfortunately that still doesn't solve my problem...
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      1. USTom van Enckevort
 

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