Re: Data validation, mapping, and error handling

[Nathan Andelin <nandelin@xxxxxxxxxxxx>]

Walden,

I'm not totally against JavaScript validation.  I generally use a 
generic routine in a .js file to alert users to "required" fields before 
submitting a form to the server.  The same routine is used in many 
applications.  It remains cached.  And it highlights every missing entry 
at the same time.  Beyond that, I'm more in favor of letting the server 
handle validation one field at a time.  Give credit to most users, that 
they'll properly fill in the form.

Nathan.

On Mon, Jun 30, 2008 at  9:53 AM, Walden H. Leverich wrote:

> > And while Javascript validation may run faster, the initial download 
> > is slower;  requires more bandwidth.
>
> Yes, but if you bundle them (the validation functions) up in a .js 
> file
> you can include it everywhere and rely on the browser caching it. 
> Speed
> is relative. Yes, your server-side validates are fast, but what if you
> had 500 users? 5,000? 50,000? And even if your power-server could 
> handle
> it, could your connection to the net?
> FWIW, could you also validate all the fields at once? It's somewhat
> annoying to have 3 errors on a page, be told about the first, fix the
> first, then be told about the second, then fix the second, then be 
> told
> about the third...
>
> -Walden