dateTimePicker

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dateTimePicker lets users select both a date and a time. If you only need a date or time of the day, use datePicker or timePicker, respectively.

  • XML element: dateTimePicker

  • Java class: TypedDateTimePicker

Basics

The date and time can be entered directly using a keyboard or selected from overlays. The overlays open when the respective fields are clicked or any input is entered.

date time picker basic

The following example defines a datePicker with a label:

<dateTimePicker id="dateTimePicker" label="Schedule meeting"/>

Data Binding

Use the dataContainer and property attributes to bind dateTimePicker to data in the screen XML descriptor:

<dateTimePicker dataContainer="userDc"
                property="passwordExpiration"
                label="Set password expiration date"/>

In the example above, the screen has the userDc data container for the User entity, which has the passwordExpiration property. The reference to the data container is specified in the dataContainer attribute. The entity attribute is specified in the property attribute.

Data Type

Data-aware DateTimePicker

The dateTimePicker component that is bound to an entity attribute will have the same data type as that attribute.

Standalone DateTimePicker

If the component is not bound to an entity attribute, you can set the data type manually, using the datatype attribute. The following data types are supported:

  • date

  • dateTime

  • localDateTime

  • offsetTime

  • localTime

  • offsetDateTime

  • time

  • localDate

Step

The default interval between the items displayed in the time overlay is set to one hour. A custom step value can be set using the step attribute. This can also be done in the screen controller:

@ViewComponent
private TypedDateTimePicker dateTimePicker;

@Subscribe
public void onInit(final InitEvent event) {
    dateTimePicker.setStep(Duration.ofMinutes(30));
}
date time picker step

The step must divide an hour or day evenly. For example, "15 minutes", "30 minutes" and "2 hours" are valid steps, whereas "42 minutes" isn’t.

The overlay doesn’t appear for steps less than 15 minutes, to avoid showing an impractical number of choices.

Date Format

The default date and time format in the application is defined by the localized format strings. To use a different format, add your own format strings to the message bundle.

To change the format for a particular component, use its dateFormat attribute.

Date and Time Range

To restrict the input to a specific range, specify a minimum and maximum value using the max and min attributes. This can also be done in the screen controller:

@ViewComponent
private TypedDateTimePicker dateTimePicker;

@Subscribe
public void onInit(final InitEvent event) {
    dateTimePicker.setMin(LocalDateTime.now());
    dateTimePicker.setMax(LocalDateTime.now().plusDays(7));
}

Apply a validator to set a more specific date and time range.

Validation

To check values entered into dateTimePicker, you can use a validator in a nested validators element.

The following predefined validators are available for dateTimePicker:

In the example below, we will show a FutureValidator usage:

<dateTimePicker label="Select a future date"
                datatype="localDateTime">
    <validators>
        <future/>
    </validators>
</dateTimePicker>

Attributes

id - autoOpen - classNames - colspan - dataContainer - datatype - dateFormat - datePlaceholder - enabled - errorMessage - height - invalid - label - max - maxHeight - maxWidth - min - minHeight - minWidth - property - readOnly - required - requiredIndicatorVisible - requiredMessage - tabIndex - themeNames - timePlaceholder - visible - weekNumbersVisible - width

autoOpen

Defines whether the overlays open when the user starts typing a date.

  • If set to true, the overlays open both on user input and on clicking their respective button or field.

  • If set to false, the overlays open only on clicking their respective button.

datePlaceholder

Specifies a text that will be displayed inside the date field when it is empty.

max

Vaadin

Specifies the latest date and time that can be selected. Entered value should be in ISO Local Date and Time format such as '2023-12-31T10:00'.

min

Vaadin

Specifies the earliest date and time that can be selected. Entered value should be in ISO Local Date and Time format such as '2023-12-24T10:00'.

timePlaceholder

Specifies a text that will be displayed inside the time field when it is empty.

Handlers

AttachEvent - BlurEvent - ClientValidatedEvent - ComponentValueChangeEvent - DetachEvent - FocusEvent - InvalidChangeEvent - OpenedChangeEvent - TypedValueChangeEvent - statusChangeHandler - validator

To generate a handler stub in Jmix Studio, use the Handlers tab of the Jmix UI inspector panel or the Generate Handler action available in the top panel of the view class and through the Code → Generate menu (Alt+Insert / Cmd+N).

ClientValidatedEvent

ClientValidatedEvent is sent by the web component whenever it is validated on the client-side.

InvalidChangeEvent

com.vaadin.flow.component.datepicker.DatePicker.InvalidChangeEvent is sent when the value of the invalid attribute of the component changes.

OpenedChangeEvent

OpenedChangeEvent is sent every time the opened attribute of the component changes. That is, when the calendar is opened or closed.

validator

Adds a validator instance to the component. The validator must throw ValidationException if the value is not valid. For example:

@Install(to = "dateTimePickerValidation", subject = "validator")
private void dateTimePickerValidationValidator(LocalDateTime date) {
    LocalTime startTime = LocalTime.of(8,0);
    LocalTime endTime = LocalTime.of(16,0);

    if (date != null) {
        boolean isWeekday = date.getDayOfWeek().getValue() >= 1 && date.getDayOfWeek().getValue() <= 5;
        boolean isValidTime = !date.toLocalTime().isBefore(startTime) && !date.toLocalTime().isAfter(endTime);
        if (!isWeekday) {
            throw new ValidationException("Select a weekday");
        }
        if (!isValidTime) {
            throw new ValidationException("Select time from 8.00 to 16.00");
        }
    }
}

Elements

tooltip - validator

See Also

See Vaadin Docs for more information.