Javascript error when display and select a line of a grid

[bisam-rd]

Scenario:

• Open a screen with a hidden grid and a button
• Click on the button: the button should display the grid and select the first line
  => javascript error. The grid is displayed, but the first line is not selected.

Code example:

import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.grid.Grid;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.router.Route;
import com.vaadin.flow.theme.Theme;
import com.vaadin.flow.theme.lumo.Lumo;

import java.util.Arrays;
import java.util.List;

@Route("table")
@Theme(Lumo.class)
public class TableOnButtonView extends Div {

    public TableOnButtonView() {
        List<Person> people = Arrays.asList(
                new Person("Nicolaus Copernicus", 1543),
                new Person("Galileo Galilei", 1564),
                new Person("Johannes Kepler", 1571));

        Grid<Person> grid = new Grid<>();
        grid.setItems(people);
        grid.addColumn(Person::getName).setHeader("Name");
        grid.addColumn(person -> Integer.toString(person.getYearOfBirth()))
            .setHeader("Year of birth");

        grid.setVisible(false);
        add(grid);
        Button click = new Button("click");
        click.addClickListener(e -> {
            grid.setVisible(true);
            grid.getSelectionModel().select(people.get(0));
        });
        add(click);
    }

    class Person {
        private String name;
        private int yearOfBirth;

        public Person(String name, int yearOfBirth) {
            this.name = name;
            this.yearOfBirth = yearOfBirth;
        }

        int getYearOfBirth() {
            return yearOfBirth;
        }

        String getName() {
            return name;
        }

    }
}

[pekam]

Might be related to #4444

Trying to call gridConnector.js before it has been initialized:
TypeError: Cannot read property 'updateData' of undefined

[denis-anisimov]

This is a duplicate for #4444.
The IT test that verifies it : vaadin/vaadin-grid-flow#291