Headers for rich:dataTable are not rendered

[lenyas66]

Could somebody advise on how to deal with the following problem?

When I show the table the first time it has no data, so it shows only table header., because it has no data.

Then, users generate the data by clicking on submit the button and they show in the table, but headers are still missing.

The column is defined as follows:

<h:column rendered="#{not empty dataItems.standardDeviation}">
 <f:facet name="header">Standard Deviation</f:facet>
 <h:outputText value="#{dataItems.standardDeviation}" />
 </h:column>

I would appreciate any help in resolving this issue.

[lenyas66]

Sorry, it should say rich:column not h:column.

[yyq2009]

Hi, it's unnecessary to use h:column or rich:comumn with attribute rendered="#{conditon}", it is coumn not row. Why do you use it like that?

[lenyas66]

I use it because depending on the data request some columns may be hidden.

Basically, user chooses what he wants to see and submits the request.

[ilya_shaikovsky]

how about rich:columns component for your case?

[lenyas66]

I tried rich:columns as well, but it didn't seem to make a difference from header point of view.