timePicker

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timePicker lets users enter or select a time.

  • XML element: timePicker

  • Java class: TypedTimePicker

Basics

Time can be entered directly using a keyboard or selected from an overlay with a list of time values. The overlay appears on clicking the field or the clock button.

time picker basic

The following example defines a timePicker of localTime type with a label:

<timePicker id="timePicker" datatype="localTime" label="Appointment time"/>

Data Types

timePicker is a typed component which supports common data types for storing a time value:

  • localTime

  • offsetTime

  • time

To change the type, use the datatype attribute.

Step

The default interval between the items displayed in the 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 TypedTimePicker<Comparable> timePicker;

@Subscribe
public void onInit(InitEvent event) {
    timePicker.setStep(Duration.ofMinutes(30));
}
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.

Time Range

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

@ViewComponent
private TypedTimePicker<Comparable> timePicker;

@Subscribe
public void onInit(InitEvent event) {
    timePicker.setMin(LocalTime.of(8,0));
    timePicker.setMax(LocalTime.of(17,0));
}

Apply a validator to set a more specific time range.

Attributes

id - allowedCharPattern - autoOpen - classNames - clearButtonVisible - colspan - dataContainer - datatype - enabled - errorMessage - height - helperText - invalid - label - max - maxHeight - maxWidth - min - minHeight - minWidth - placeholder - property - readOnly - required - requiredIndicatorVisible - requiredMessage - step - tabIndex - visible - width

autoOpen

Defines whether an overlay opens when the user interacts with the component.

  • If set to true, the overlay opens on user input and on clicking the clock button or the field.

  • If set to false, the overlay opens only on clicking the clock button.

max

Vaadin

Specifies the latest time that can be selected. Accepted format is hh:mm.

min

Vaadin

Specifies the earliest time that can be selected. Accepted format is hh:mm.

Handlers

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

Чтобы сгенерировать заглушку обработчика в Jmix Studio, используйте вкладку Handlers панели инспектора Jmix UI, или команду Generate Handler, доступную на верхней панели контроллера экрана и через меню Code → Generate (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.

validator

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

@Install(to = "timePicker", subject = "validator")
private void timePickerValidator(LocalTime value) {
    if (value != null && LocalTime.of(13,0).isBefore(value) && LocalTime.of(14,0).isAfter(value)) {
        throw new ValidationException("No appointments between 13:00 to 14:00.");
    }
}

Elements

tooltip - validator

See Also

See Vaadin Docs for more information.