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https://issues.apache.org/struts/browse/WW-1557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39648
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Dale Newfield commented on WW-1557:
-----------------------------------
The .tld does not include this attribute. While I can add that, since neither
tomcat nor I can find an appropriate setter, modifying the .tld is not
sufficient.
It appears that for a select tag getValueClassType() is going to return null
(due to the method in org.apache.struts2.components.ListUIBean), which means
that in org.apache.struts2.components.UIBean the template parameter "nameValue"
should be set appropriately from the tag attribute "value":
addParameter("nameValue", findValue(value));
> multiple="true" does not work in s:select tag
> ---------------------------------------------
>
> Key: WW-1557
> URL: https://issues.apache.org/struts/browse/WW-1557
> Project: Struts 2
> Issue Type: Bug
> Components: Views
> Affects Versions: 2.0.1
> Reporter: Dale Newfield
> Fix For: 2.0.3
>
>
> The comments in the code for the multiple attribute in the SelectTag states:
> "Creates a multiple select. The tag will pre-select multiple values if the
> values are passed as an Array (of appropriate types) via the value attribute.
> Passing a Collection may work too? Haven't tested this."
> I have tried to use this both with a Collection, an Array, and a single
> value, and as far as I can tell none work. It does generate a select with
> the multiple attribute set, but I cannot figure out how to get any of the
> options to be marked as selected.
> In the following tag I have tried value="%{event.communities}"
> value="%{event.communities.toArray()}" value="%{event.communities[0]}" and
> many other variants, with no success. I have displayed the content of
> event.communities (and lots of other variations) using s:property tags, so I
> know that the values are there...
> <s:select label="%{getText('event.communities')}"
> name="eventCommunityShortNames"
> multiple="true"
> value="%{event.communities}"
> list="%{user.canCreateEventsForCommunities}"
> listKey="shortName"
> listValue="fullName"
> size="4"/>
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