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https://issues.apache.org/jira/browse/MYFACES-1863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589039#action_12589039
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Simon Kitching commented on MYFACES-1863:
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You might find this page useful:
http://wiki.apache.org/myfaces/forceId?highlight=%28forceId%29
> HTML generated with duplicate Ids when using "forceId=true"
> -----------------------------------------------------------
>
> Key: MYFACES-1863
> URL: https://issues.apache.org/jira/browse/MYFACES-1863
> Project: MyFaces Core
> Issue Type: Bug
> Reporter: Guy Bashan
>
> It is possible to generate duplicate ids when using "forceId=true".
> For example:
> Create 2 nested databases with inner control that uses: forceId=true
> <h:datatable value="outerValues" var="outerValue>
> <h:column>
> <h:datatable value="innerValues" var="innerValue">
> <h:column>
> <t:outputText id="myId" forceId="true" />
> </h:column>
> </h:column>
> </h:datatable>
> The created html will produce the ids: myId[0], myId[1], myId[2] and so on...
> The truth is, that even in a single table loop, I was expecting to see Ids
> according to the regular convention: myId:0, myId:1, ...
> and in this case: myId:0:0, myId:0:1, ...., ,myId:1:0, myId:1:1, ...
> instead, I saw this "array like" convention, which is acceptable, as long as
> it will be something like this: myId[0][0], ...
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