Question about commandSortHeader of dataTable

[Emily Gu]

Hi,

 

  I would like to add a checkbox as the part of header using commandSortHeader in dataTable. I did the following:

 

       

<t:dataTable id="data" ...preserveDataModel="false" preserveSort="true">

<f:facet name="header">

    <t:commandSortHeader columnName="#{columnHeader.label}" arrow="false" immediate= "false">

        <f:facet name="ascending">

            <t:graphicImage value="images/ascending-arrow.gif" rendered= "true" border="0"/>

       </f:facet >

       <f:facet name="descending" >

          <t:graphicImage value="images/descending- arrow.gif" rendered="true" border= "0"/>

      </f:facet>

      <h:selectBooleanCheckbox rendered=" #{myObject.valueModifiable}" value="false" />

      <h:outputText value=" #{columnHeader.label}" />

    </t:commandSortHeader>

</f:facet>

...

The first rendering of the page, the checkbox was showing up fine, not after any sorting, pagnating or submission. The checkbox on the header of the first column was gone. Any way to keep it staying?

Thanks for your help!