I'm trying to build Datatable, where source of some columns (field name) are determined at Run Time. I tried a few ways without success. Here my attempts:

<rich:extendedDataTable value="#{bSBean.itemsRS}" var="items">

   <rich:column width="120px"  style="text-align: right" >

    <f:facet name="header">

     <h:outputText value="#{bSBean.keyFigColumns[0]}" styleClass="field-label"/>

    </f:facet>   

    <h:outputText value="#{items.#{bSBean.keyFigColumns[0]}}">

     <f:convertNumber pattern="###,###,##0.00" />

    </h:outputText >

   </rich:column>

here bSBean.keyFigColumns[0] returns "field1"

Works for the header, but not for the field itself.

Another attempt with ui:include:

  <ui:include src="KeyFigColumn.xhtml">

     <ui:param name="columnCaption" value="#{bSBean.keyFigColumns[0]}"/>

     <ui:param name="columnSource" value="#{bSBean.keyFigSource[0]}"/>

    </ui:include>

KeyFigColumn.xhtml"

<rich:column width="120px"  style="text-align: right" >

  <f:facet name="header">

   <h:outputText value="#{columnCaption}" styleClass="field-label"/>

    </f:facet>   

    <h:outputText value="#{columnSource}">

     <f:convertNumber pattern="###,###,##0.00" />

    </h:outputText >

   </rich:column> 

here bSBean.keyFigSource[0] returns "#{items.field1}

but table displays #{items.field1} in every row instead of content of field1.

Is there any way to accomplish this task?