Examples with VirtualList com.vaadin.flow.component.virtuallist.VirtualList used on opensource projects

Example 11 with VirtualList

use of com.vaadin.flow.component.virtuallist.VirtualList in project flow-components by vaadin.

the class VirtualListPage method createDataProviderWithStrings.

private void createDataProviderWithStrings() {
    VirtualList<String> list = new VirtualList<>();
    list.setHeight("100px");
    DataProvider<String, ?> dataProvider1 = DataProvider.ofItems("Item 1", "Item 2", "Item 3");
    DataProvider<String, ?> dataProvider2 = DataProvider.ofItems("Another item 1", "Another item 2");
    DataProvider<String, ?> dataProvider3 = DataProvider.ofItems();
    list.setDataProvider(dataProvider1);
    NativeButton setProviderWith3Items = new NativeButton("Change dataprovider 1", evt -> list.setDataProvider(dataProvider1));
    NativeButton setProviderWith2Items = new NativeButton("Change dataprovider 2", evt -> list.setDataProvider(dataProvider2));
    NativeButton setEmptyProvider = new NativeButton("Change dataprovider 3", evt -> list.setDataProvider(dataProvider3));
    list.setId("dataprovider-with-strings");
    setProviderWith3Items.setId("dataprovider-with-strings-3-items");
    setProviderWith2Items.setId("dataprovider-with-strings-2-items");
    setEmptyProvider.setId("dataprovider-with-strings-0-items");
    add(list, setProviderWith3Items, setProviderWith2Items, setEmptyProvider);
}

Example 12 with VirtualList

use of com.vaadin.flow.component.virtuallist.VirtualList in project flow-components by vaadin.

the class VirtualListPage method createListWithComponentRendererWithBeansAndPlaceholder.

private void createListWithComponentRendererWithBeansAndPlaceholder() {
    VirtualList<Person> list = new VirtualList<>();
    list.setHeight("100px");
    List<Person> people = createPeople(100);
    list.setRenderer(new ComponentRenderer<Div, Person>(person -> {
        Div text = new Div(new Text(person.getName()));
        text.addClassName("component-rendered");
        return text;
    }));
    list.setItems(people);
    list.setId("component-renderer-with-beans");
    Person placeholder = new Person();
    placeholder.setName("the-placeholder");
    list.setPlaceholderItem(placeholder);
    add(list);
}

Example 13 with VirtualList

use of com.vaadin.flow.component.virtuallist.VirtualList in project flow-components by vaadin.

the class VirtualListPage method createListWithStrings.

private void createListWithStrings() {
    VirtualList<String> list = new VirtualList<>();
    list.setHeight("100px");
    list.setItems("Item 1", "Item 2", "Item 3");
    NativeButton setListWith3Items = new NativeButton("Change list 1", evt -> list.setItems("Item 1", "Item 2", "Item 3"));
    NativeButton setListWith2Items = new NativeButton("Change list 2", evt -> list.setItems("Another item 1", "Another item 2"));
    NativeButton setEmptyList = new NativeButton("Change list 3", evt -> list.setItems());
    list.setId("list-with-strings");
    setListWith3Items.setId("list-with-strings-3-items");
    setListWith2Items.setId("list-with-strings-2-items");
    setEmptyList.setId("list-with-strings-0-items");
    add(list, setListWith3Items, setListWith2Items, setEmptyList);
}

Example 14 with VirtualList

use of com.vaadin.flow.component.virtuallist.VirtualList in project flow-components by vaadin.

the class VirtualListViewPage method createStringListWithDataProvider.

private void createStringListWithDataProvider() {
    VirtualList<String> list = new VirtualList<>();
    list.setHeight("200px");
    list.getStyle().set("border", "1px solid lightgray");
    DataProvider<String, ?> dataProvider = DataProvider.fromCallbacks(query -> queryStringsFromDatabase(query), query -> countStringsFromDatabase(query));
    list.setDataProvider(dataProvider);
    list.setId("list-of-strings-with-dataprovider");
    add(new Div(new Text("List of books lazy loaded from the database")), list);
}