cute="@this price" listener="#{purchaseOrderController.onEdit(bi)}" ></f:ajax>
                                                <f:ajax event="focus" render=":#{p:resolveFirstComponentWithId('tab',view).clientId}" listener="#{purchaseOrderController.onFocus(bi)}" />
                                            </p:inputText>
                                        </p:column> 
                                        <p:column 
                                            width="6em"
                           