package com.vaadin.tests.components.combobox; import com.vaadin.data.Property.ValueChangeEvent; import com.vaadin.tests.components.TestBase; import com.vaadin.ui.ComboBox; import com.vaadin.ui.Label; public class ComboBoxValueUpdate extends TestBase { @Override protected Integer getTicketNumber() { return 2451; } @Override protected String getDescription() { return "Testcase for ComboBox. Test especially edge values(of page changes) when selecting items with keyboard only."; } @Override protected void setup() { ComboBox select = new ComboBox(""); select.setImmediate(true); for (int i = 0; i < 100; i++) { select.addItem("item " + i); } final Label value = new Label(); select.addListener(new ComboBox.ValueChangeListener() { @Override public void valueChange(ValueChangeEvent event) { System.err .println("Selected " + event.getProperty().getValue()); value.setValue("Selected " + event.getProperty().getValue()); } }); getLayout().addComponent(select); getLayout().addComponent(value); } }