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Posted by frothpoker on 10/13/06 08:55
sounds like a job for AJAX
AJAX allows you to load a page of HTML and then using javascript
enabled events you can validate information on the form (in elements of
the DOM) and carry out inline replacements of various sections (e.g.,
you need a different authorisation process if the order value is over
£1000) or can check information or combinations of information without
having to submit the whole form and then return the results if they are
not what was required.
It requires javascript to be enabled on the client PCs and you will
need to be running IE6 or the latest version of mozilla (firefox) or
opera but is platform independant.
I'm not convinced of its uses on external web sites but for intranet
usage where you have more control over the settings users have on their
PCs it should be ideal. There are several commercial packages with
pre-built AJAX classes which should ease the pain.
One of AJAX's best features (and the most annoying is web forms) is
where you have a huge drop down list (say 50000 people in a company and
you need to find a name - e.g. Wyznkcsky. in a web form you type 'W'
and the list jumps to the start of W and then you type 'Y' and the list
jumps to the start of Y - Arrrgh!. With an AJAX enabled form the list
is simply filtered to give you all the people who's names either start
with or contain 'WY' - Ta Dah!)
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