I use a DropDownList in a grid like this :
<ig:column>
<f:facet name="header">
<h:outputText value="Etat" />
</f:facet>
dataSource="#{operateursBean.view.etatsItems}" value="#{DATA_ROW.actif}"></ig:dropDownList>
</ig:column>
<h:selectOneMenu value="#{DATA_ROW.actif}">
<f:selectItem itemValue="0" itemLabel="Actif" />
<f:selectItem itemValue="1" itemLabel="Inactif" />
<f:selectItem itemValue="2" itemLabel="Simulation" />
</h:selectOneMenu>