Wie Sie einen DatePicker zu Tableview mit ein DatePickerCell

Hier ist eine Lösung, die funktionieren. Es verwendet einen DatePicker und TableView-Steuerelement mit Java 8.
Der blog-post ist verfügbar hier.

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
import javafx.application.Platform;
import javafx.collections.ObservableList;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.DatePicker;
import javafx.scene.control.TableCell;

public class DatePickerCell<S, T> extends TableCell<BirthdayEvent, Date> {

    private DatePicker datePicker;
    private ObservableList<BirthdayEvent> birthdayData;

    public DatePickerCell(ObservableList<BirthdayEvent> listBirthdays) {

        super();

        this.birthdayData = listBirthdays;

        if (datePicker == null) {
            createDatePicker();
        }
        setGraphic(datePicker);
        setContentDisplay(ContentDisplay.GRAPHIC_ONLY);

        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                datePicker.requestFocus();
            }
        });
    }

    @Override
    public void updateItem(Date item, boolean empty) {

        super.updateItem(item, empty);

        SimpleDateFormat smp = new SimpleDateFormat("dd/MM/yyyy");

        if (null == this.datePicker) {
            System.out.println("datePicker is NULL");
        }

        if (empty) {
            setText(null);
            setGraphic(null);
        } else {

            if (isEditing()) {
                setContentDisplay(ContentDisplay.TEXT_ONLY);

            } else {
                setDatepikerDate(smp.format(item));
                setText(smp.format(item));
                setGraphic(this.datePicker);
                setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
            }
        }
    }

    private void setDatepikerDate(String dateAsStr) {

        LocalDate ld = null;
        int jour, mois, annee;

        jour = mois = annee = 0;
        try {
            jour = Integer.parseInt(dateAsStr.substring(0, 2));
            mois = Integer.parseInt(dateAsStr.substring(3, 5));
            annee = Integer.parseInt(dateAsStr.substring(6, dateAsStr.length()));
        } catch (NumberFormatException e) {
            System.out.println("setDatepikerDate /unexpected error " + e);
        }

        ld = LocalDate.of(annee, mois, jour);
        datePicker.setValue(ld);
    }

    private void createDatePicker() {
        this.datePicker = new DatePicker();
        datePicker.setPromptText("jj/mm/aaaa");
        datePicker.setEditable(true);

        datePicker.setOnAction(new EventHandler() {
            public void handle(Event t) {
                LocalDate date = datePicker.getValue();
                int index = getIndex();

                SimpleDateFormat smp = new SimpleDateFormat("dd/MM/yyyy");
                Calendar cal = Calendar.getInstance();
                cal.set(Calendar.DAY_OF_MONTH, date.getDayOfMonth());
                cal.set(Calendar.MONTH, date.getMonthValue() - 1);
                cal.set(Calendar.YEAR, date.getYear());

                setText(smp.format(cal.getTime()));
                commitEdit(cal.getTime());

                if (null != getBirthdayData()) {
                    getBirthdayData().get(index).setDate(cal.getTime());
                }
            }
        });

        setAlignment(Pos.CENTER);
    }

    @Override
    public void startEdit() {
        super.startEdit();
    }

    @Override
    public void cancelEdit() {
        super.cancelEdit();
        setContentDisplay(ContentDisplay.TEXT_ONLY);
    }

    public ObservableList<BirthdayEvent> getBirthdayData() {
        return birthdayData;
    }

    public void setBirthdayData(ObservableList<BirthdayEvent> birthdayData) {
        this.birthdayData = birthdayData;
    }

    public DatePicker getDatePicker() {
        return datePicker;
    }

    public void setDatePicker(DatePicker datePicker) {
        this.datePicker = datePicker;
    }

}