Vedr.: RE: Using drop down boxes in JSP

[Thomas Nybro Bolding <th...@danskebank.dk>]

I think this could be done, but without knowing your application I think 
this design has its drawbacks. Say a user wants to select "foo" placed as 
no. 42 in your drop down box. Would you then call the servlet 41 times 
before making the "correct" request?

/Thomas




Anson Zeall <ze...@bigpond.net.au>
17-09-03 12:55
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        Vedr.:  RE: Using drop down boxes in JSP

OR maybe....can I use it to call a javascript method to call up a
servlet? Does that work?

Anson

-----Original Message-----
From: Anson Zeall [mailto:zeallous@bigpond.net.au]
Sent: Wednesday, September 17, 2003 8:54 PM
To: 'Tomcat Users List'
Subject: RE: Using drop down boxes in JSP


Hi,
   Thanks for the reply. But, hmm.....i was thinking of using
onChange...and then....process the parameter via servlet?

Anson

-----Original Message-----
From: Walker Chris [mailto:walkerc@dc-link.co.uk]
Sent: Wednesday, September 17, 2003 8:45 PM
To: 'Tomcat Users List'
Subject: RE: Using drop down boxes in JSP


Anson,

You will have to write client JavaScript to do this.

OTTOMH, attach a function to the onChange event of your SELECT tag.  The

object representing the tag will probably be accessible as
document.all.yourTagId, or possibly something else, depending on the
browser object model.  This object will expose a collection
corresponding to all the OPTION tags and a property to indicate which is
selected.

I'd recommend you to find a definition of the browser object model and
to check out sites specializing in JavaScript.

Chris Walker



-----Original Message-----
From: Anson Zeall [mailto:zeallous@bigpond.net.au]
Sent: 17 September 2003 11:31
To: Tomcat Users List
Subject: Using drop down boxes in JSP


Hi people,

    I want to know, what is the best way to scan the option chosen each
time the user selects an option from the drop down menu. Like..most of
the pages I surfed to, they only showed how to make a drop down box..and
then see what the option was chosen ONLY when the button is pressed. Is
there any way I can scan the input, as soon as the user chooses an
option from the drop down box?

Regards,


Anson




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