title: p:selectCheckboxMenu ajax event name for on close
body: <p>I need to trigger action on the <code>p:selectCheckboxMenu</code> when user finishes his selection(s) (on close). the <code>datatable</code> need to be updated with new selected columns(done).</p>
  
  <p>I couldn't find the event name of the ajax behavior that suits this principal role of a Menu.the default ajax behavior of the <code>p:selectCheckboxMenu</code> updates the datatable on every selection which is annoying for me and the user, i need only the <code>p:selectCheckboxMenu</code> to trigger action when it is closed.</p>
  
  <p>Here is my code :</p>
  
  <pre><code>&lt;p:selectCheckboxMenu id="colser"
                        scrollHeight="100"
                        filterMatchMode="contains"
                        filter="true"
                        label="Colonnes"
                        value="#{datatableBean.selectedstateOptions}"&gt;  
     &lt;f:selectItems value="#{datatableBean.columner}"
                    var="list"
                    itemLabel="#{list.listname}" 
                    itemValue="#{list.headername}"/&gt;  
     &lt;p:ajax  event="close_event_name_here"
              update=":form1:tabexam"
              listener="#{datatableBean.updateCols()}"/&gt;
  &lt;/p:selectCheckboxMenu&gt;
  </code></pre>