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Hello, I'm printing a primefaces datatable with the printer component. The table cells are printed correctly, but some have a red or blue background that does not print. Do you have a solution ? Thank you. I use PF 6.1.2

hi , im try to do the java web to connect with managed bean and connect to the javaDB (entity) class i trying to insert the record in the database but ....fail.... public void createUser(){ Booking book = new Booking(); book.setLessonno(this.l_id); book.setCustomername(strName); book.setCustomerphone(strPhone); try { utx.begin(); em.persist(book); utx.commit(); } catch (Exception e) { throw new RuntimeException(e); } } this come out a error .... java.lang.UnsupportedOperationException: Not supported yet. public void updateDB(){ EntityManagerFactory emfactory = Persistence.createEntityManagerFactory("testTrainingPU"); EntityManager entitymanager = emfactory.createEntityManager(); entitymanager.getTransaction().begin(); Lesson lesson = entitymanager.find(Lesson.class, this.l_id); lesson.setQuantity(lesson.getQuantity()-1); entitymanager.getTransaction().commit(); Booking book = new Booking(); book.setCustomername(strName); book.setCustomerphone(strPhone); book.setLessonno(this.l_id); entitymanager.persist(book); entitymanager.getTransaction().commit(); entitymanager.close(); emfactory.close(); } this way also same so how i need to solve it ...thanks

Hey I've got a problem with fireing a change-event manually.So I have a selectOneMenu (i'ts like a dropdown in jsf) with different values.If I choose a value of this dropdown-list, a datatable should be updated. This works correctly, if i choose this value manually.Now there is a case, where I need to insert a new value to the selectOneMenu. This new value gets selected automatically, but the change-event to update the datatable doesn't get fired...So basically I have this button to save a new value to the selectOneMenu which then gets selected correctly, but the datatable doesn't get updated, which is why I tried to write the function fireChange() and gave that to the oncomplete of the button: <p:commandButton ajax="true" id="seatingPlanSave" actionListener="#{EventAssistentController.createSeatingPlan}" value="#{msg.save}" update=":createEvent:EventSeatingPlan, :createEvent:ticketTypePrices"oncomplete="fireChange()"/> For the fireChange()-function, i tried a few different things: function fireChange() { var element = document.getElementById("createEvent:EventSeatingPlan_input");element.onchange();} function fireChange() {var element = document.getElementById("createEvent:EventSeatingPlan_input");$(element).trigger("change");} function fireChange() {if ("fireEvent" in element) element.fireEvent("onchange");else { var evt = document.createEvent("HTMLEvents"); evt.initEvent("change", false, true); element.dispatchEvent(evt);} But none of these work :(Can you please tell me how I can achieve this?Thanks, Xera