package com.vaadin.tests.components.grid; import java.util.ArrayList; import java.util.List; import com.vaadin.server.VaadinRequest; import com.vaadin.tests.components.AbstractTestUI; import com.vaadin.ui.Button; import com.vaadin.ui.Grid; import com.vaadin.ui.VerticalLayout; public class GridDefaultSelectionMode extends AbstractTestUI { @Override protected void setup(VaadinRequest request) { final Person person1 = new Person(); person1.setFirstName("person"); person1.setLastName("one"); Person person2 = new Person(); person2.setFirstName("person"); person2.setLastName("two"); List items = new ArrayList<>(); items.add(person1); items.add(person2); final Grid grid = new Grid<>(); grid.setItems(items); grid.addColumn(person -> person.getFirstName()) .setCaption("First Name"); grid.addColumn(person -> person.getLastName()).setCaption("Last Name"); VerticalLayout v = new VerticalLayout(); v.addComponent(new Button("Deselect on server", event -> grid.getSelectionModel().deselectAll())); v.addComponent(new Button("Select on server", event -> grid.getSelectionModel().select(person1))); v.addComponent(grid); addComponent(v); } public static class Person { private String firstName; private String lastName; public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } } }