Display p:dataTable Row Numbers

Question

In mkyong example, they show How To Display DataTable Row Numbers In JSF. They use javax.faces.model.DataModel to get row index without using backing bean value. How to achieve this by using primfaces p:dataTable. Thanks.

Answer 1

In primefaces p:datatable component, the component has rowIndexVar attribute, which is used to iterate to refer each row index. Thus, you can do like my example below

<p:dataTable 
             var="cmr01Forms" 
             value="#{cmr01Bean.cmr01Forms}"
             rowIndexVar="index">
    <p:column>
        <f:facet name="header">
            <h:outputText value="index" />
        </f:facet>
        <h:outputText 
            value="#{index + 1}" />
    </p:column>
</p:dataTable>

Answer 2

 ***

• you can use rowindex. rowIndexVar="rowIndex". it starts with 0 so you ve to plus 1 every row

---

<p:dataTable var="kat" value="#{kategoriBean.kategoriler}" rowIndexVar="rowIndex">
        <!--        <p:column headerText="Kategori Id"> -->
        <!--            <h:outputText value="#{kat.Id}" /> -->
        <!--        </p:column> -->
        <p:column headerText="NO">
            <h:outputText value="#{rowIndex+1}"></h:outputText>
        </p:column>
        <p:column headerText="Kategori Adı">
            <h:outputText value="#{kat.kategoriAdi}" />
        </p:column>
        <p:column>
            <h:outputText value="#{kat.kategoriKisaAciklama}"></h:outputText>
        </p:column>
    </p:dataTable>