java.util.List in FormBean

[zuban <al...@gmail.com>]

Hi,
in a FromBean I have a java.util.List (to populate a <html:optionsCollection
... />).
If I submit the form the List is set to null. For String datatypes I would
use hidden input fields to solve this. But what should I do by a List?
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Re: java.util.List in FormBean

[Laurie Harper <la...@holoweb.net>]

zuban wrote:
> Hi,
> in a FromBean I have a java.util.List (to populate a <html:optionsCollection
> .... />).
> If I submit the form the List is set to null. For String datatypes I would
> use hidden input fields to solve this. But what should I do by a List?

You can either reload the list each time the action is invoked or, if 
you really want to manage this state client-side, you can serialize it 
to a set of N hidden fields, where N is the number of elements in the 
list. Alternatively, you could put the list into session scope the first 
time you load it and subsequently reference it from there.

L.


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