How to hide / show yui.calendar.DatePicker in wicket
invoiceDateFromField = new DateTextField("invoiceDateFromField", new PropertyModel(this, "invoiceDateFrom"), new PatternDateConverter("yyyy-MM-dd", true));
    invoiceDateFromField.setOutputMarkupPlaceholderTag(true);
    invoiceDateFromField.add(new DatePicker());
    containsAllContainer.add(invoiceDateFromField);

containsAllContainer.setVisible(!containsAllContainer.isVisible());
target.add(containsAllContainer);//Edit