Support for Lists using s:hidden tag
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Key: WW-2612
URL: https://issues.apache.org/struts/browse/WW-2612
Project: Struts 2
Issue Type: Improvement
Affects Versions: 2.0.11.1
Reporter: Steve Akins
Priority: Minor
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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