Re: Using ArrayList instead of String[] properties

[Mark Lowe]

what does you form bean look like (dyna or otherwise)?



On 13 Jan 2004, at 12:07, shankarr wrote:

Hi!
I was myself trying to work on a similar issue.
My problem is as follows:
i query db.
Then store data in Araylist.
How to pass this to jsp page?
Any sample code great appreciation.
Please urgent.
Sha

At 02:27 PM 1/12/2004 -0700, you wrote:
> From: Wendy Smoak
> Apparently you don't have to use
> logic-el:iterate with html-el:checkbox & indexed="true".  This 
works:
> <c:forEach items="${accountMap[accountForm.map.calendarYear]}"
> var="account" >
>      <html-el:checkbox property="accounts" indexed="true">

I lied, that doesn't work at all.  It produces HTML like this:

  <input type="checkbox"
name="org.apache.struts.taglib.html.BEAN[0].accounts"
value="on">10_U_FADA0001
I read that indexed properties only work with logic:iterate, so I'm
trying to change over from logic:forEach.  Can someone help me sort 
this
out?

This works to generate HTML, but BeanUtils can't populate the 
ArrayList
that is the 'accounts' property of accountForm because the bracketed 
[]
indexes are missing.

<logic-el:iterate
collection="${accountMap[accountForm.map.calendarYear]}"
                  id="acct"
                  indexId="ctr">
     <html-el:checkbox property="accounts" >
        <c:out value="${acct.key}"/>
     </html-el:checkbox>
     ...
However, if I add indexed="true" like so:

<logic-el:iterate
collection="${accountMap[accountForm.map.calendarYear]}" id="acct"
indexId="ctr">
     <html-el:checkbox property="accounts" indexed="true">
        <c:out value="${acct.key}"/>
     </html-el:checkbox>
It renders this HTML:
     <input type="checkbox"
name="org.apache.struts.taglib.html.BEAN[0].accounts"
value="on">10_U_FADA0001
??! This is my first attempt at indexed properties, which apparently I
need in order to use an ArrayList.  (The items in the ArrayList are 
just
Strings, not complex objects.  This isn't nested properties, it's 
just a
bunch of checkboxes.  I'm trying to use ArrayList instead of String[] 
to
avoid out of bounds errors.  String[] was working *fine* last week,
until I got the bright idea to use ArrayList.)

I'm getting the feeling that the things in the ArrayList property of 
the
form have to be complex objects and not just Strings.

--
Wendy Smoak
Application Systems Analyst, Sr.
ASU IA Information Resources Management
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