Is that possible to define dynamic value of tag "var" in richfaces datatable?

Question

Is that possible to define dynamic value of tag "var" in richfaces datatable?

I have a component that contains rich datatable inside and I want to use custom "var" name.

I do so

Component:

<rich:extendedDataTable id="#{id}_list" cellspacing="0" rows="#{rows}" var="#{itemName}"
                            value="#{data}">

Page:

<wh:list id="f" data="#{deviceListBean.data}" rows="20" itemName="item">

But I get such exception:

javax.servlet.ServletException: var cannot be EL-expression
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)

I want to be able use custom "var" name. May be there is some another way to do that?

Answer 1

Here is a trick (name attribute of ui:param can be EL-expression):

<ui:param name="#{itemName}" value="#{item}"/>
<rich:extendedDataTable var="item" value="#{data}">