Examples with Column com.vaadin.flow.component.grid.Grid.Column used on opensource projects

Example 1 with Column

use of com.vaadin.flow.component.grid.Grid.Column in project flow-components by vaadin.

the class GridColumnTest method createColumn_returnsNonNullAndBasicType.

@Test
public void createColumn_returnsNonNullAndBasicType() {
    Column column = new Grid<Person>().createColumn(TemplateRenderer.of(""), "");
    assertNotNull(column);
    Assert.assertEquals(Column.class, column.getClass());
}

Example 2 with Column

use of com.vaadin.flow.component.grid.Grid.Column in project flow-components by vaadin.

the class GridViewBasicFeaturesPage method createBasicFeatures.

private void createBasicFeatures() {
    final int baseYear = 2015;
    final int numberOfYears = 5;
    DecimalFormat dollarFormat = new DecimalFormat("$#,##0.00");
    Grid<CompanyBudgetHistory> grid = new Grid<>();
    ListDataProvider<CompanyBudgetHistory> list = CompanyBudgetHistory.getBudgetDataProvider(baseYear, numberOfYears);
    grid.setDataProvider(list);
    grid.setColumnReorderingAllowed(true);
    Column<CompanyBudgetHistory> companyNameColumn = grid.addColumn(CompanyBudgetHistory::getCompany).setHeader("Company");
    companyNameColumn.setWidth("200px");
    grid.setSelectionMode(SelectionMode.SINGLE);
    HeaderRow topHeader = grid.prependHeaderRow();
    IntStream.range(baseYear, baseYear + numberOfYears).forEach(year -> {
        BigDecimal firstHalfSum = list.fetch(new Query<>()).collect(Collectors.toList()).stream().map(budgetHistory -> budgetHistory.getFirstHalfOfYear(year)).reduce(BigDecimal.ZERO, BigDecimal::add);
        BigDecimal secondHalfSum = list.fetch(new Query<>()).collect(Collectors.toList()).stream().map(budgetHistory -> budgetHistory.getSecondHalfOfYear(year)).reduce(BigDecimal.ZERO, BigDecimal::add);
        Column<?> firstHalfColumn = grid.addColumn(new NumberRenderer<>(budgetHistory -> budgetHistory.getFirstHalfOfYear(year), dollarFormat)).setHeader("H1").setTextAlign(ColumnTextAlign.END).setFooter(dollarFormat.format(firstHalfSum)).setComparator((p1, p2) -> p1.getFirstHalfOfYear(year).compareTo(p2.getFirstHalfOfYear(year)));
        Column<?> secondHalfColumn = grid.addColumn(new NumberRenderer<>(budgetHistory -> budgetHistory.getSecondHalfOfYear(year), dollarFormat)).setHeader("H2").setTextAlign(ColumnTextAlign.END).setFooter(dollarFormat.format(secondHalfSum)).setComparator((p1, p2) -> p1.getSecondHalfOfYear(year).compareTo(p2.getSecondHalfOfYear(year)));
        topHeader.join(firstHalfColumn, secondHalfColumn).setText(year + "");
    });
    HeaderRow filteringHeader = grid.appendHeaderRow();
    TextField filteringField = new TextField();
    filteringField.addValueChangeListener(event -> {
        list.setFilter(CompanyBudgetHistory::getCompany, company -> {
            if (company == null) {
                return false;
            }
            String companyLower = company.toLowerCase(Locale.ENGLISH);
            String filterLower = event.getValue().toLowerCase(Locale.ENGLISH);
            return companyLower.contains(filterLower);
        });
    });
    filteringField.setPlaceholder("Filter");
    filteringField.setWidth("100%");
    filteringHeader.getCell(companyNameColumn).setComponent(filteringField);
    grid.setId("grid-basic-feature");
    addCard("Basic Features", "Grid Basic Features Demo", grid);
}

Example 3 with Column

use of com.vaadin.flow.component.grid.Grid.Column in project flow-components by vaadin.

the class GridViewEditorPage method createBufferedEditor.

private void createBufferedEditor() {
    Div message = new Div();
    message.setId("buffered-editor-msg");
    Grid<Person> grid = new Grid<>();
    List<Person> persons = getItems();
    grid.setItems(persons);
    Column<Person> nameColumn = grid.addColumn(Person::getFirstName).setHeader("Name");
    Column<Person> subscriberColumn = grid.addColumn(Person::isSubscriber).setHeader("Subscriber");
    Binder<Person> binder = new Binder<>(Person.class);
    Editor<Person> editor = grid.getEditor();
    editor.setBinder(binder);
    editor.setBuffered(true);
    Div validationStatus = new Div();
    validationStatus.setId("validation");
    TextField field = new TextField();
    binder.forField(field).withValidator(name -> name.startsWith("Person"), "Name should start with Person").withStatusLabel(validationStatus).bind("firstName");
    nameColumn.setEditorComponent(field);
    Checkbox checkbox = new Checkbox();
    binder.bind(checkbox, "subscriber");
    subscriberColumn.setEditorComponent(checkbox);
    Collection<Button> editButtons = Collections.newSetFromMap(new WeakHashMap<>());
    Column<Person> editorColumn = grid.addComponentColumn(person -> {
        Button edit = new Button("Edit");
        edit.addClassName("edit");
        edit.addClickListener(e -> {
            editor.editItem(person);
            field.focus();
        });
        edit.setEnabled(!editor.isOpen());
        editButtons.add(edit);
        return edit;
    });
    editor.addOpenListener(e -> editButtons.stream().forEach(button -> button.setEnabled(!editor.isOpen())));
    editor.addCloseListener(e -> editButtons.stream().forEach(button -> button.setEnabled(!editor.isOpen())));
    Button save = new Button("Save", e -> editor.save());
    save.addClassName("save");
    Button cancel = new Button("Cancel", e -> editor.cancel());
    cancel.addClassName("cancel");
    // Add a keypress listener that listens for an escape key up event.
    // Note! some browsers return key as Escape and some as Esc
    grid.getElement().addEventListener("keyup", event -> editor.cancel()).setFilter("event.key === 'Escape' || event.key === 'Esc'");
    Div buttons = new Div(save, cancel);
    editorColumn.setEditorComponent(buttons);
    editor.addSaveListener(event -> message.setText(event.getItem().getFirstName() + ", " + event.getItem().isSubscriber()));
    grid.setId("buffered-editor");
    addCard("Grid Editor", "Editor in Buffered Mode", message, validationStatus, grid);
}

Example 4 with Column

use of com.vaadin.flow.component.grid.Grid.Column in project flow-components by vaadin.

the class GridViewEditorPage method createNotBufferedDynamicEditor.

private void createNotBufferedDynamicEditor() {
    Div message = new Div();
    message.setId("not-buffered-dynamic-editor-msg");
    Grid<Person> grid = new Grid<>();
    List<Person> persons = new ArrayList<>();
    persons.addAll(createItems());
    grid.setItems(persons);
    Column<Person> nameColumn = grid.addColumn(Person::getFirstName).setHeader("Name");
    Column<Person> subscriberColumn = grid.addColumn(Person::isSubscriber).setHeader("Subscriber");
    Column<Person> emailColumn = grid.addColumn(Person::getEmail).setHeader("E-mail");
    Binder<Person> binder = new Binder<>(Person.class);
    Editor<Person> editor = grid.getEditor();
    editor.setBinder(binder);
    TextField field = new TextField();
    // Close the editor in case of backward navigation between components
    field.getElement().addEventListener("keydown", event -> grid.getEditor().closeEditor()).setFilter("event.key === 'Tab' && event.shiftKey");
    binder.bind(field, "firstName");
    nameColumn.setEditorComponent(field);
    Checkbox checkbox = new Checkbox();
    binder.bind(checkbox, "subscriber");
    subscriberColumn.setEditorComponent(checkbox);
    // Close the editor in case of forward navigation between components
    checkbox.getElement().addEventListener("keydown", event -> {
        if (!checkbox.getValue()) {
            grid.getEditor().closeEditor();
        }
    }).setFilter("event.key === 'Tab' && !event.shiftKey");
    TextField emailField = new TextField();
    emailColumn.setEditorComponent(item -> {
        if (item.isSubscriber()) {
            binder.bind(emailField, "email");
            return emailField;
        } else {
            return null;
        }
    });
    // Close the editor in case of forward navigation between components
    emailField.getElement().addEventListener("keydown", event -> grid.getEditor().closeEditor()).setFilter("event.key === 'Tab' && !event.shiftKey");
    grid.addItemDoubleClickListener(event -> {
        grid.getEditor().editItem(event.getItem());
        field.focus();
    });
    // Re-validates the editors every time something changes on the Binder.
    // This is needed for the email column to turn into nothing when the
    // checkbox is deselected, for example.
    binder.addValueChangeListener(event -> {
        // Only updates from the client-side should be taken into account
        if (event.isFromClient()) {
            grid.getEditor().refresh();
        }
    });
    grid.addItemClickListener(event -> {
        if (binder.getBean() != null) {
            message.setText(binder.getBean().getFirstName() + ", " + binder.getBean().isSubscriber() + ", " + binder.getBean().getEmail());
        }
    });
    grid.setId("not-buffered-dynamic-editor");
    addCard("Grid Editor", "Dynamic Editor in Not Buffered Mode", message, grid);
}

Example 5 with Column

use of com.vaadin.flow.component.grid.Grid.Column in project flow-components by vaadin.

the class GridViewEditorPage method createNotBufferedEditor.

private void createNotBufferedEditor() {
    Div message = new Div();
    message.setId("not-buffered-editor-msg");
    Grid<Person> grid = new Grid<>();
    List<Person> persons = getItems();
    grid.setItems(persons);
    Column<Person> nameColumn = grid.addColumn(Person::getFirstName).setHeader("Name");
    Column<Person> subscriberColumn = grid.addColumn(Person::isSubscriber).setHeader("Subscriber");
    Binder<Person> binder = new Binder<>(Person.class);
    grid.getEditor().setBinder(binder);
    TextField field = new TextField();
    // Close the editor in case of backward between components
    field.getElement().addEventListener("keydown", event -> grid.getEditor().closeEditor()).setFilter("event.key === 'Tab' && event.shiftKey");
    binder.bind(field, "firstName");
    nameColumn.setEditorComponent(field);
    Checkbox checkbox = new Checkbox();
    binder.bind(checkbox, "subscriber");
    subscriberColumn.setEditorComponent(checkbox);
    // Close the editor in case of forward navigation between
    checkbox.getElement().addEventListener("keydown", event -> grid.getEditor().closeEditor()).setFilter("event.key === 'Tab' && !event.shiftKey");
    grid.addItemDoubleClickListener(event -> {
        grid.getEditor().editItem(event.getItem());
        field.focus();
    });
    grid.addItemClickListener(event -> {
        if (binder.getBean() != null) {
            message.setText(binder.getBean().getFirstName() + ", " + binder.getBean().isSubscriber());
        }
    });
    grid.setId("not-buffered-editor");
    addCard("Grid Editor", "Editor in Not Buffered Mode", message, grid);
}