jsf - remove row from datatable -

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i don't know how remove row datatable.

this facelet:

<p:commandbutton id="confirm" value="valider" update=":messages"  oncomplete="dialogdelete.hide()"     actionlistener="#{agentbean.btndelete}"   styleclass="ui-confirmdialog-yes" icon="icon-ok"/>

session bean:

public void delete (agentministere agentministere) {     agentministerefacade.remove(agentministere); }

managed bean:

public string btndelete (){     manager.delete(agentministere);     return "agentlist"; }


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