datatable sort column

[mblondel]

I would like to sort the column of my datatable

I have this :

<rich:column sortable="true">

But the default is true. May I use "sortExpression" abd how can I use it ?
Thanks

[biggerschwarz]

Here is an example of how I got it working:

<rich:column sortExpression="#{grant.grantContractTypeName}">
 <f:facet name="header">
 <h:outputText styleClass="required" escape="false" value="Grant/ <br/> Contract" />
 </f:facet>
 <h:outputText value="#{grant.grantContractTypeName}" />
</rich:column>

grant is a managed bean.

[mblondel]

For me, it doesn't work. The column "Name" is not sortable. Nothing appends when I click on the header. Here is my simple example.
Thanks

<h:form>

<rich:dataTable width="500" id="productList" rows="10" columnClasses="col"
 value="#{exaProductBean.products}" var="product">

 <rich:column id="Name" sortExpression="#{product.productName}">
 <f:facet name="header">
 <h:outputText styleClass="headerText" value="Name" />
 </f:facet>
 <h:outputText value="#{product.productName}" />
 </rich:column>

 <rich:column id="Vendor">
 <f:facet name="header">
 <h:outputText styleClass="headerText" value="Vendor" />
 </f:facet>
 <h:outputText value="#{product.vendor}" />
 </rich:column>

</rich:dataTable>

</h:form>

[ilya_shaikovsky]

such column sorting currently works only for rich:scrollableTable. Such support for simple table planned to 3.2.0 version