Thanks for your advises, I'm definetly going to develop a server side
validation functionality.
I think a client side validation is still useful even when there is a server
side validation as it permits to avoid a lot of traffic/requests to the
server;
I'm gonna fix my forms in this way. Here is the question: if I use the
onsubmit event in my input type image button for javascript enabled browser,
will the form be submitted without javascript support? (it should as the
input type image submits the form by default...)
Cheers,
Gianfranco
-Original Message-
From: Ned Lukies [mailto:[EMAIL PROTECTED]
Sent: 18 May 2004 12:23
To: [EMAIL PROTECTED]
Subject: Re: [WSG] javascript form submission
I come from a programming rather than a design background, so my opinion may
not be the correct one as far as accessability is concerned.
In most of my web sites, when a user submits form data, that data is usually
processed and stored in some kind of database. I believe that it is good
practice to never trust any data that is submitted from a form so I always
validate it on the server. The consequences of incomplete or invalid data
being inserted into a database could be devastating.
Moving on, as I am generally very lazy when coding, I don't really see the
point in validating the data on the client, if it has to be validated on the
server. I guess you could claim that javascript is quicker to highlight
errors in the form. I have always found a stream of javascript alerts when
submitting a form to be quite annoying.
That said, something I find even more annoying is a large form that is
validated on the server, which when presented again if there is a validation
error, has lost half the data you had submitted.
Ned
On Tue, 18 May 2004 08:20 pm, Todini, Gianfranco (TWIi London) wrote:
Hi,
This is my first post on this list and I'd like to say that I find it
really really useful and intersting!
I need to do some changes on a website to improve accessibility and one of
the issue that I need to solve is the way the form are submitted, which is
done by a javascript function called from the onclick event on an Anchor
tag. And we know that this is wrong because if a user has got javascript
disabled, he won't be able to submit the form.
I'm going to add an input type=image button which will do the job but,
where should I put now the form validation? I mean can I still use the
onsubmit event on the input type image and use the same javascript
function
that there was before or is it everytime better to have the validation on
the server-side to have a proper accessible form? Thanks everyone.
Gianfranco Todini
Front-end developer
TWI Interactive Limited
Hogarth Business Park
One Burlington Lane
Chiswick
London, W4 2TH
Tel: +44 (0) 20 8233 6212
Fax: +44 (0) 20 8233 6101
Email:[EMAIL PROTECTED]
Visit www.twii.net for news and information on TWIi's solutions and
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