first step is to call listview.setreuseitems(true), that will get rid of the disappearing input on invalidation. please read listview javadoc.
-igor On Feb 18, 2008 9:23 PM, Martin Makundi <[EMAIL PROTECTED]> wrote: > Hi! > > I have a simple html table with checkboxes and input text fields. My > goal is to validate that if the checkbox on the row is selected, the > respective input field should contain text. And vice versa, if the > input field contains text, the checkbox should be checked. > > I have now constructed a nearly working version of the page. The > problems are as follows: > a) Checking the checkbox and submitting it, returns > checkBox.getModelObject() as False. Shouldn't it pick the value from > the form, which is checked? > b) If I write text in a textfield, the form gets invalidated due to > the "unchecked" checkbox on the row, and the textfield gets cleared. I > would like the typed text not to be cleared out. > c) If I type anything into the form after the feedback, and submit > again, the form is not validated, but the values remain on the screen, > and the feedback messages are cleared. This seems weird, as if the > form would be in some kind of tilt mode now. I get a warning on the > logs: IFormValidator in form `todoForm` depends on a component that > has been removed from the page or is no longer visible. Offending > component id `todo`. > > Naturally I would like the form to behave more intuitively. Most > likely I am doing something significantly wrong here now. And the > warning message, why is that and how should I operate it insteaed? > Please have a look, here is my code: > > <html xmlns:wicket="http://wicket.sourceforge.net";> > <head> > <title>Welcome to TODO application</title> > </head> > <body> > > <h2>Todo weekdays descriptions</h2> > <span wicket:id="feedback">Feedback messages will be here.</span> > <form name="todoForm" wicket:id="todoForm"> > <table cellspacing="2" cellpadding="0" border="0"> > <thead> > <tr> > <th align="center">Date</th> > <th align="center">Selected</th> > <th align="left">Description</th> > </tr> > </thead> > <tbody> > <tr wicket:id="listView"> > <td align="right" NOWRAP><span > wicket:id="date"></span></td> > <td><input type="checkbox" wicket:id="todo"/></td> > <td><input type="text" wicket:id="description" size="70"/></td> > </tr> > </tbody> > </table> > <input type="submit" value="Save"> > </form> > </body> > </html> > > public class Todos extends WebPage { > private static final String TODO_FORM = "todoForm"; > private static final String DESCRIPTION = "description"; > private static final String TODO = "todo"; > private static final String DATE = "date"; > private static final String LIST_VIEW = "listView"; > private List<Todo> todoList; > > public Todos() { > final FeedbackPanel feedbackPanel = new FeedbackPanel("feedback"); > User dummyUser = new User(); > > Form todoForm = new Form(TODO_FORM); > final List<FormComponent> formComponentsToBeValidated = new > LinkedList<FormComponent>(); > @SuppressWarnings("serial") > ListView listView = new PropertyListView(LIST_VIEW, > getTodoList(dummyUser)) { > protected void populateItem(ListItem item) { > Todo todo = (Todo) item.getModelObject(); > item.add(new Label(DATE, new > Model(Convert.toString(todo.getTodoDay())))); > CheckBox checkBox = new CheckBox(TODO, new > PropertyModel(todo, Todo.SELECTED)); > TextField textField = new TextField(DESCRIPTION, new > PropertyModel(todo, Todo.DESCRIPTION)); > item.add(checkBox); > formComponentsToBeValidated.add(checkBox); > item.add(textField); > formComponentsToBeValidated.add(textField); > } > }; > > @SuppressWarnings("serial") > AbstractFormValidator formValidator = new AbstractFormValidator() { > public FormComponent[] getDependentFormComponents() { > return formComponentsToBeValidated.toArray(new > FormComponent[formComponentsToBeValidated.size()]); > } > > public void validate(Form form) { > Boolean textRequired = null; > boolean checkedButDescriptionMissing = false; > boolean descriptionGivenButUnchecked = false; > for (FormComponent formComponent : formComponentsToBeValidated) { > if (textRequired == null) { > CheckBox checkBox = (CheckBox) formComponent; > textRequired = (Boolean) checkBox.getModelObject(); > System.out.print("Checked: \"" + textRequired + "\" "); > } else { > TextField textField = (TextField) formComponent; > boolean emptyField = Utils.isEmpty(textField.getValue()); > System.out.println("Field: \"" + textField.getValue() + "\""); > if ((textRequired.booleanValue()) && (emptyField)) { > if (!checkedButDescriptionMissing) { > error(textField, "checked_but_description_missing"); > checkedButDescriptionMissing = true; // Show this only once > } > } else if ((!textRequired.booleanValue()) && (!emptyField)) { > if (!descriptionGivenButUnchecked) { > error(textField, "description_given_but_unchecked"); > descriptionGivenButUnchecked = true; // Show this only once > } > } > textRequired = null; > } > } > } > }; > todoForm.add(formValidator); > todoForm.add(listView); > add(feedbackPanel); > add(todoForm); > } > > private List<Todo> getTodoList(User user) { > if (todoList == null) { > Date currentWeekStartDate = TakpSession.getWeekStartDate(); > todoList = TodoServices.browseWeek(currentWeekStartDate, user); > } > > return todoList; > } > } > > > > ** > Martin > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
