selectOneMenu

<h:selectOneMenu value="#{company.tradingActivity}" required="true">
  <s:selectItems value="#{companyTradeActivityList.resultList}"
                   var="act"
                 label="#{act.tradeActivityName}"
      noSelectionLabel="Please Select ..."
  hideNoSelectionLabel="true" />

  <s:convertEntity />

</h:selectOneMenu>

<h:selectOneMenu value="#{actionContato.setor}" id="isetor"
                    required="true" requiredMessage="É necessario escolher
um setor"
                    >
                    <f:converter converterId="conversorStringParaSetor" />
                    <f:selectItems value="#{actionContato.itensSetor}" />
                </h:selectOneMenu>

<h:selectOneMenu id="cboVendedor" styleClass="combo" value="#{operacionesConsulta.vendedor}" readonly="#{operacionesConsultaBean.readCboVendedores}">
	<f:selectItems value="#{operacionesConsultaBean.vendedores}"/>
	</h:selectOneMenu>

# <h:selectOneMenu id="comboDataTable" value="#{item.valorBean}" styleClass="PaginaCombo">  
#                               <f:selectItem itemValue="" itemLabel="Selecione um valor" />  
#                               <f:selectItem itemValue="valor1" itemLabel="valor1" />  
#                               <f:selectItem itemValue="valor2" itemLabel="valor2" />  
#                               <f:selectItem itemValue="valor3" itemLabel="valor3" />  
#                               <f:selectItem itemValue="valorN" itemLabel="valorN" />  
#                            </h:selectOneMenu>  
#                            <!-- ou caso seja uma lista dinamica  
#                               <h:selectOneMenu id="loteItemComboDataTable" value="#{item.lote}">   
#                                  <f:selectItems id="comboSelectItens" value="#{seuPageCode.suaLista}" />  
#                                  <f:converter converterId="classPathBean.ClasseBean" />                             
#                               </h:selectOneMenu>

# <h:selectOneMenu id="dataTransferCombobox" value="#{loginBean.dataTransferScheme}"  
# <a4j:support event="onchange" action="#{loginBean.setAuthFields(loginBean.dataTransferScheme)}"  
# ajaxSingle="true" immediate="true"/>  
# </h:selectOneMenu>