TestView4.java

package com.example.application.views;

import com.vaadin.flow.component.grid.Grid;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.router.Route;

import java.util.ArrayList;
import java.util.List;

@Route(value = "test5")
public class TestView4 extends Div {

    public TestView4() {
        setSizeFull();

        Grid<Person> grid1 = new Grid<>();
        grid1.setAllRowsVisible(true);
        grid1.addColumn(p -> p.id).setHeader("ID");
        grid1.addColumn(p -> p.name).setHeader("Name1");
        grid1.addColumn(p -> p.name).setHeader("Name2");
        grid1.addColumn(p -> p.name).setHeader("Name3");
        grid1.addColumn(p -> p.name).setHeader("Name4");
        grid1.addColumn(p -> p.name).setHeader("Name5");
        grid1.addColumn(p -> p.name).setHeader("Name6");
        grid1.addColumn(p -> p.name).setHeader("Name7");
        grid1.setItems(fetchPersons(1));

        Grid<Person> grid2 = new Grid<>();
        grid2.setAllRowsVisible(true);
        grid2.addColumn(p -> p.id).setHeader("ID");
        grid2.addColumn(p -> p.name).setHeader("Name1");
        grid2.addColumn(p -> p.name).setHeader("Name2");
        grid2.addColumn(p -> p.name).setHeader("Name3");
        grid2.addColumn(p -> p.name).setHeader("Name4");
        grid2.setItems(fetchPersons(1));

        Grid<Person> grid3 = new Grid<>();
        grid3.setAllRowsVisible(true);
        grid3.addColumn(p -> p.id).setHeader("ID");
        grid3.addColumn(p -> p.name).setHeader("Name1");
        grid3.addColumn(p -> p.name).setHeader("Name2");
        grid3.setItems(fetchPersons(1));

        add(new HorizontalLayout(grid1, grid2, grid3));

    }


    private List<Person> fetchPersons(int limit) {
        List<Person> tempList = new ArrayList<>();
        for (int i = 0; i < limit; i++) {
            Person e = new Person(i, "Name_" + (i));
            tempList.add(e);
        }
        return tempList;
    }

    private static class Person {
        private final int id;
        private final String name;

        private Person(int id, String name) {
            this.id = id;
            this.name = name;
        }

        public String getName() {
            return name;
        }
    }
}