Only display headers in first subtable ?

[raphael_lemaire]

Hello rich faces users !

I have a question for you.

I have a rich:dataTable which include an inner rich:dataTable :

<rich:dataTable value="#{firstCollection}" var="item" rowKeyVar="rowKey">
<rich:column>
...
</rich:column>
<rich:column>
<f:facet name="header">
<h:outputText value="Azerty" />
</f:facet>
<rich:dataTable value="#{item.otherCollection}" var="item2" >
<rich:column>
<f:facet name="header" rendered="?">
<h:outputText value="Qwetry" />
</f:facet>
...
</rich:column>
</rich:dataTable>
</rich:column>
</rich:dataTable>

For the inner data tables I only want the headers diplayed for the first row of the top level data table.

Is there any clean way to do this ?

[ilya_shaikovsky]

if I get your case right - just use subtable instead of nested dataTAble. It encodes table structure but without nested table element. And puts its headers to parent table headers.

[raphael_lemaire]

Hi Ilya Shaikovsky, thanks for your answer.

I tried rich:subTable but it's not quite what I want : for each row of the parent table, it adds a row of headers and all rows of the "subtable". The rows of the "subTable" are rows of the parent table ! (This tag is weird ...).

I want to keep the sub tables as nested tables, but only display the headers for the first line of the parent table.

I managed to do it by declaring two almost identical sub tables, one with the "f:facet" headers, rendered only if it's the first row ("#{rowKey == 0}"), and one without headers rendered if it's not the first row ("#{rowKey != 0}"). But in this case I have duplication. That's why I asked for a clean way.

Beside f:facet does not have a rendered attribute, otherwise it would be very simple.

[raphael_lemaire]

No idea ?

Maybe it's not possible ?