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https://issues.apache.org/jira/browse/WW-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16034217#comment-16034217
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Lukasz Lenart commented on WW-1534:
-----------------------------------
[~mars_pb] the problem here is that the {{<s:checkbox/>}} doesn't know that
it's inside a {{<s:iterator/>}}'s loop and the list has only one element, so it
should generate an additional hidden input. We can introduce a hack to detect
such corner case but I'm not sure if this a valid solution.
> The value of checkbox getted in server-side is "false" when no any checkbox
> been selected.
> ------------------------------------------------------------------------------------------
>
> Key: WW-1534
> URL: https://issues.apache.org/jira/browse/WW-1534
> Project: Struts 2
> Issue Type: Improvement
> Components: Value Stack
> Affects Versions: 2.0.1
> Environment: tomcat-5.5.20 / jdk1.5.0.08
> Reporter: Ling Chang Ming
> Assignee: Lukasz Lenart
> Fix For: 2.5.next
>
>
> jsp section:
> {code:xml}
> <s:iterator value="%{#request.rolePs.items}" id="role" status="status">
> <tr >
> <td height="25" width="5%">
> <s:checkbox name="roleId" fieldValue="%{id}"
> theme="simple"/>
> </td>
> </tr>
> ........
> </s:iterator>
> {code}
> action section:
> {code:java}
> ....
> private String[] roleId;
> public String[] getRoleId() {
> return roleId;
> }
> public void setRoleId(String[] roleId) {
> this.roleId = roleId;
> }
> .....
> {code}
> the retrieved value of "roleId" is {{false}} when user doesn't select any
> checkbox elements. In my opinion, this case should returns null directly.
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