javafx datepicker how to customize

Question

I have the simple code for date picker which disables all the dates which are before the chosen one, but I need to be able to disable other dates as well (like for example:1

Answer 1

If you want to have several ranges of dates to disable, you can create this POJO:

class DisabledRange {

    private final LocalDate initialDate;
    private final LocalDate endDate;

    public DisabledRange(LocalDate initialDate, LocalDate endDate){
        this.initialDate=initialDate;
        this.endDate = endDate;
    }

    public LocalDate getInitialDate() { return initialDate; }
    public LocalDate getEndDate() { return endDate; }

}

And now in you can define a collection of ranges to disable in your calendar. For instance:

private final ObservableList<DisabledRange> rangesToDisable = 
    FXCollections.observableArrayList(
        new DisabledRange(LocalDate.of(2014,10,17), LocalDate.of(2014,10,19)),
        new DisabledRange(LocalDate.of(2014,10,27), LocalDate.of(2014,10,29)));

Finally, you just need to check in the Callback if the item is within any of these ranges:

@Override
public void updateItem(LocalDate item, boolean empty) {
    super.updateItem(item, empty);

    boolean disable = rangesToDisable.stream()
            .filter(r->r.initialDate.minusDays(1).isBefore(item))
            .filter(r->r.endDate.plusDays(1).isAfter(item))
            .findAny()
            .isPresent();

    if (item.isBefore(checkInDatePicker.getValue().plusDays(1)) || 
            disable) {
            setDisable(true);
            setStyle("-fx-background-color: #ffc0cb;");
    }
    ...
}