How to use selectBooleanCheckbox

[fjkjava.febinjk.gmail.com]

Hi All,

I am trying to use selectBooleanCheckbox  in my DataTable. I wrote code like this

//In My SessionBean
@Out(required=false)
private Map<String, Boolean> selectedPo = new HashMap<String, Boolean>();

//xhtml

<rich:column>
<h:selectBooleanCheckbox value="#{myManager.selectedPo[po.id.poNum]}"  />
</rich:column>

<h:commandButton action="#{myManager.send}" value="Send"/>

And when i check selectedPo in send Method it is Null there(NullPointerException)

Anybody knows the problem here.

Advance thanks for you help

[serkan.s.eskici.online.nl]

Selecting multiple rows in JSF.

[fjkjava.febinjk.gmail.com]

Thanks Serkan Eskici