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https://issues.apache.org/jira/browse/WW-2612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart closed WW-2612.
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Resolution: Not A Problem
> Support for Lists using s:hidden tag
> ------------------------------------
>
> Key: WW-2612
> URL: https://issues.apache.org/jira/browse/WW-2612
> Project: Struts 2
> Issue Type: Improvement
> Affects Versions: 2.0.11.1
> Reporter: Steve Akins
> Priority: Minor
> Fix For: 6.1.0
>
>
> If you have a List in an Action that you want to maintain through a form I
> would expect that coding a s:hidden tag for the List would work.
> Currently the s:hidden tag does represent the List in the generated HTML
> however when the form is submitted the parameter is not translated back into
> the List correctly.
> eg.
> If you have a List called "ids" which contains 4 Strings "22030", "6496",
> "6457", "6448" and
> When the following tag is used:
> <s:hidden name="resend.ids" />
> It produces the following HTML:
> <input type="hidden" name="resend.ids" value="[22030, 6496, 6457, 6448]"
> id="/test/resend_resend_ids"/>
> When the form is submitted the "ids" List is populated with one String
> "[22030, 6496, 6457, 6448]" instead of 4 Strings "22030", "6496", "6457",
> "6448".
> This looks like XWorkBasicConverter needs some enhancing but I haven't
> figured out how.
> The only workarounds for this that I can see are:
> 1. Iterate through the List in the JSP and use a s:hidden for each element in
> the List. This will generate a lot of unnecessary HTML.
> 2. Create a custom converter but I think that support for Lists should be out
> of the box.
>
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