Module javafx.controls
Package javafx.scene.control

Class DatePicker

  • All Implemented Interfaces:
    Styleable, EventTarget, Skinnable

    public class DatePicker
extends ComboBoxBase<LocalDate>
    The DatePicker control allows the user to enter a date as text or to select a date from a calendar popup. The calendar is based on either the standard ISO-8601 chronology or any of the other chronology classes defined in the java.time.chrono package.

    The value property represents the currently selected LocalDate. An initial date can be set via the constructor or by calling setValue(LocalDate). The default value is null. 

    
 final DatePicker datePicker = new DatePicker();
 datePicker.setOnAction(new EventHandler() {
     public void handle(Event t) {
         LocalDate date = datePicker.getValue();
         System.err.println("Selected date: " + date);
     }
 });
    The chronology property specifies a calendar system to be used for parsing, displaying, and choosing dates. The value property is always defined in the ISO calendar system, however, so applications based on a different chronology may use the conversion methods provided in the Chronology API to get or set the corresponding ChronoLocalDate value. For example: 
    
 LocalDate isoDate = datePicker.getValue();
 ChronoLocalDate chronoDate =
     ((isoDate != null) ? datePicker.getChronology().date(isoDate) : null);
 System.err.println("Selected date: " + chronoDate);
    Since:
    JavaFX 8.0

    • Property Detail

      • dayCellFactory

        public final ObjectProperty<Callback<DatePicker,DateCell>> dayCellFactoryProperty
        A custom cell factory can be provided to customize individual day cells in the DatePicker popup. Refer to DateCell and Cell for more information on cell factories. Example: 
        
 final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
     public DateCell call(final DatePicker datePicker) {
         return new DateCell() {
             @Override public void updateItem(LocalDate item, boolean empty) {
                 super.updateItem(item, empty);

                 if (MonthDay.from(item).equals(MonthDay.of(9, 25))) {
                     setTooltip(new Tooltip("Happy Birthday!"));
                     setStyle("-fx-background-color: #ff4444;");
                 }
                 if (item.equals(LocalDate.now().plusDays(1))) {
                     // Tomorrow is too soon.
                     setDisable(true);
                 }
             }
         };
     }
 };
 datePicker.setDayCellFactory(dayCellFactory);
        Default value:
        null
        See Also:
        getDayCellFactory(), setDayCellFactory(Callback)

      • chronology

        public final ObjectProperty<Chronology> chronologyProperty
        The calendar system used for parsing, displaying, and choosing dates in the DatePicker control.

        The default value is returned from a call to Chronology.ofLocale(Locale.getDefault(Locale.Category.FORMAT)). The default is usually IsoChronology unless provided explicitly in the Locale by use of a Locale calendar extension. Setting the value to null will restore the default chronology.

        See Also:
        getChronology(), setChronology(Chronology)

      • showWeekNumbers

        public final BooleanProperty showWeekNumbersProperty
        Whether the DatePicker popup should display a column showing week numbers.

        The default value is specified in a resource bundle, and depends on the country of the current locale.

        See Also:
        isShowWeekNumbers(), setShowWeekNumbers(boolean)

      • converter

        public final ObjectProperty<StringConverter<LocalDate>> converterProperty
        Converts the input text to an object of type LocalDate and vice versa.

        If not set by the application, the DatePicker skin class will set a converter based on a DateTimeFormatter for the current Locale and chronology. This formatter is then used to parse and display the current date value. Setting the value to null will restore the default converter.

        Example using an explicit formatter: 

        
 datePicker.setConverter(new StringConverter<LocalDate>() {
     String pattern = "yyyy-MM-dd";
     DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);

     {
         datePicker.setPromptText(pattern.toLowerCase());
     }

     @Override public String toString(LocalDate date) {
         if (date != null) {
             return dateFormatter.format(date);
         } else {
             return "";
         }
     }

     @Override public LocalDate fromString(String string) {
         if (string != null && !string.isEmpty()) {
             return LocalDate.parse(string, dateFormatter);
         } else {
             return null;
         }
     }
 });

        Example that wraps the default formatter and catches parse exceptions: 

        
   final StringConverter<LocalDate> defaultConverter = datePicker.getConverter();
   datePicker.setConverter(new StringConverter<LocalDate>() {
       @Override public String toString(LocalDate value) {
           return defaultConverter.toString(value);
       }

       @Override public LocalDate fromString(String text) {
           try {
               return defaultConverter.fromString(text);
           } catch (DateTimeParseException ex) {
               System.err.println("HelloDatePicker: "+ex.getMessage());
               throw ex;
           }
       }
   });

        The default base year for parsing input containing only two digits for the year is 2000 (see DateTimeFormatter). This default is not useful for allowing a person's date of birth to be typed. The following example modifies the converter's fromString() method to allow a two digit year for birth dates up to 99 years in the past. 

        
   @Override public LocalDate fromString(String text) {
       if (text != null && !text.isEmpty()) {
           Locale locale = Locale.getDefault(Locale.Category.FORMAT);
           Chronology chrono = datePicker.getChronology();
           String pattern =
               DateTimeFormatterBuilder.getLocalizedDateTimePattern(FormatStyle.SHORT,
                                                                    null, chrono, locale);
           String prePattern = pattern.substring(0, pattern.indexOf("y"));
           String postPattern = pattern.substring(pattern.lastIndexOf("y")+1);
           int baseYear = LocalDate.now().getYear() - 99;
           DateTimeFormatter df = new DateTimeFormatterBuilder()
                       .parseLenient()
                       .appendPattern(prePattern)
                       .appendValueReduced(ChronoField.YEAR, 2, 2, baseYear)
                       .appendPattern(postPattern)
                       .toFormatter();
           return LocalDate.from(chrono.date(df.parse(text)));
       } else {
           return null;
       }
   }
        See Also:
        getConverter(), setConverter(StringConverter)

    • Constructor Detail

      • DatePicker

        public DatePicker​()
        Creates a default DatePicker instance with a null date value set.

      • DatePicker

        public DatePicker​(LocalDate localDate)
        Creates a DatePicker instance and sets the value to the given date.
        Parameters:
        localDate - to be set as the currently selected date in the DatePicker. Can be null.

    • Method Detail

      • setDayCellFactory

        public final void setDayCellFactory​(Callback<DatePicker,DateCell> value)
        Sets the value of the property dayCellFactory.
        Property description:
        A custom cell factory can be provided to customize individual day cells in the DatePicker popup. Refer to DateCell and Cell for more information on cell factories. Example: 
        
 final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
     public DateCell call(final DatePicker datePicker) {
         return new DateCell() {
             @Override public void updateItem(LocalDate item, boolean empty) {
                 super.updateItem(item, empty);

                 if (MonthDay.from(item).equals(MonthDay.of(9, 25))) {
                     setTooltip(new Tooltip("Happy Birthday!"));
                     setStyle("-fx-background-color: #ff4444;");
                 }
                 if (item.equals(LocalDate.now().plusDays(1))) {
                     // Tomorrow is too soon.
                     setDisable(true);
                 }
             }
         };
     }
 };
 datePicker.setDayCellFactory(dayCellFactory);
        Default value:
        null

      • getDayCellFactory

        public final Callback<DatePicker,DateCell> getDayCellFactory​()
        Gets the value of the property dayCellFactory.
        Property description:
        A custom cell factory can be provided to customize individual day cells in the DatePicker popup. Refer to DateCell and Cell for more information on cell factories. Example: 
        
 final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
     public DateCell call(final DatePicker datePicker) {
         return new DateCell() {
             @Override public void updateItem(LocalDate item, boolean empty) {
                 super.updateItem(item, empty);

                 if (MonthDay.from(item).equals(MonthDay.of(9, 25))) {
                     setTooltip(new Tooltip("Happy Birthday!"));
                     setStyle("-fx-background-color: #ff4444;");
                 }
                 if (item.equals(LocalDate.now().plusDays(1))) {
                     // Tomorrow is too soon.
                     setDisable(true);
                 }
             }
         };
     }
 };
 datePicker.setDayCellFactory(dayCellFactory);
        Default value:
        null

      • dayCellFactoryProperty

        public final ObjectProperty<Callback<DatePicker,DateCell>> dayCellFactoryProperty​()
        A custom cell factory can be provided to customize individual day cells in the DatePicker popup. Refer to DateCell and Cell for more information on cell factories. Example: 
        
 final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
     public DateCell call(final DatePicker datePicker) {
         return new DateCell() {
             @Override public void updateItem(LocalDate item, boolean empty) {
                 super.updateItem(item, empty);

                 if (MonthDay.from(item).equals(MonthDay.of(9, 25))) {
                     setTooltip(new Tooltip("Happy Birthday!"));
                     setStyle("-fx-background-color: #ff4444;");
                 }
                 if (item.equals(LocalDate.now().plusDays(1))) {
                     // Tomorrow is too soon.
                     setDisable(true);
                 }
             }
         };
     }
 };
 datePicker.setDayCellFactory(dayCellFactory);
        Default value:
        null
        See Also:
        getDayCellFactory(), setDayCellFactory(Callback)

      • chronologyProperty

        public final ObjectProperty<Chronology> chronologyProperty​()
        The calendar system used for parsing, displaying, and choosing dates in the DatePicker control.

        The default value is returned from a call to Chronology.ofLocale(Locale.getDefault(Locale.Category.FORMAT)). The default is usually IsoChronology unless provided explicitly in the Locale by use of a Locale calendar extension. Setting the value to null will restore the default chronology.

        See Also:
        getChronology(), setChronology(Chronology)

      • getChronology

        public final Chronology getChronology​()
        Gets the value of the property chronology.
        Property description:
        The calendar system used for parsing, displaying, and choosing dates in the DatePicker control.

        The default value is returned from a call to Chronology.ofLocale(Locale.getDefault(Locale.Category.FORMAT)). The default is usually IsoChronology unless provided explicitly in the Locale by use of a Locale calendar extension. Setting the value to null will restore the default chronology.

      • setChronology

        public final void setChronology​(Chronology value)
        Sets the value of the property chronology.
        Property description:
        The calendar system used for parsing, displaying, and choosing dates in the DatePicker control.

        The default value is returned from a call to Chronology.ofLocale(Locale.getDefault(Locale.Category.FORMAT)). The default is usually IsoChronology unless provided explicitly in the Locale by use of a Locale calendar extension. Setting the value to null will restore the default chronology.

      • showWeekNumbersProperty

        public final BooleanProperty showWeekNumbersProperty​()
        Whether the DatePicker popup should display a column showing week numbers.

        The default value is specified in a resource bundle, and depends on the country of the current locale.

        See Also:
        isShowWeekNumbers(), setShowWeekNumbers(boolean)

      • setShowWeekNumbers

        public final void setShowWeekNumbers​(boolean value)
        Sets the value of the property showWeekNumbers.
        Property description:
        Whether the DatePicker popup should display a column showing week numbers.

        The default value is specified in a resource bundle, and depends on the country of the current locale.

      • isShowWeekNumbers

        public final boolean isShowWeekNumbers​()
        Gets the value of the property showWeekNumbers.
        Property description:
        Whether the DatePicker popup should display a column showing week numbers.

        The default value is specified in a resource bundle, and depends on the country of the current locale.

      • converterProperty

        public final ObjectProperty<StringConverter<LocalDate>> converterProperty​()
        Converts the input text to an object of type LocalDate and vice versa.

        If not set by the application, the DatePicker skin class will set a converter based on a DateTimeFormatter for the current Locale and chronology. This formatter is then used to parse and display the current date value. Setting the value to null will restore the default converter.

        Example using an explicit formatter: 

        
 datePicker.setConverter(new StringConverter<LocalDate>() {
     String pattern = "yyyy-MM-dd";
     DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);

     {
         datePicker.setPromptText(pattern.toLowerCase());
     }

     @Override public String toString(LocalDate date) {
         if (date != null) {
             return dateFormatter.format(date);
         } else {
             return "";
         }
     }

     @Override public LocalDate fromString(String string) {
         if (string != null && !string.isEmpty()) {
             return LocalDate.parse(string, dateFormatter);
         } else {
             return null;
         }
     }
 });

        Example that wraps the default formatter and catches parse exceptions: 

        
   final StringConverter<LocalDate> defaultConverter = datePicker.getConverter();
   datePicker.setConverter(new StringConverter<LocalDate>() {
       @Override public String toString(LocalDate value) {
           return defaultConverter.toString(value);
       }

       @Override public LocalDate fromString(String text) {
           try {
               return defaultConverter.fromString(text);
           } catch (DateTimeParseException ex) {
               System.err.println("HelloDatePicker: "+ex.getMessage());
               throw ex;
           }
       }
   });

        The default base year for parsing input containing only two digits for the year is 2000 (see DateTimeFormatter). This default is not useful for allowing a person's date of birth to be typed. The following example modifies the converter's fromString() method to allow a two digit year for birth dates up to 99 years in the past. 

        
   @Override public LocalDate fromString(String text) {
       if (text != null && !text.isEmpty()) {
           Locale locale = Locale.getDefault(Locale.Category.FORMAT);
           Chronology chrono = datePicker.getChronology();
           String pattern =
               DateTimeFormatterBuilder.getLocalizedDateTimePattern(FormatStyle.SHORT,
                                                                    null, chrono, locale);
           String prePattern = pattern.substring(0, pattern.indexOf("y"));
           String postPattern = pattern.substring(pattern.lastIndexOf("y")+1);
           int baseYear = LocalDate.now().getYear() - 99;
           DateTimeFormatter df = new DateTimeFormatterBuilder()
                       .parseLenient()
                       .appendPattern(prePattern)
                       .appendValueReduced(ChronoField.YEAR, 2, 2, baseYear)
                       .appendPattern(postPattern)
                       .toFormatter();
           return LocalDate.from(chrono.date(df.parse(text)));
       } else {
           return null;
       }
   }
        See Also:
        getConverter(), setConverter(StringConverter)

      • setConverter

        public final void setConverter​(StringConverter<LocalDate> value)
        Sets the value of the property converter.
        Property description:
        Converts the input text to an object of type LocalDate and vice versa.

        If not set by the application, the DatePicker skin class will set a converter based on a DateTimeFormatter for the current Locale and chronology. This formatter is then used to parse and display the current date value. Setting the value to null will restore the default converter.

        Example using an explicit formatter: 

        
 datePicker.setConverter(new StringConverter<LocalDate>() {
     String pattern = "yyyy-MM-dd";
     DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);

     {
         datePicker.setPromptText(pattern.toLowerCase());
     }

     @Override public String toString(LocalDate date) {
         if (date != null) {
             return dateFormatter.format(date);
         } else {
             return "";
         }
     }

     @Override public LocalDate fromString(String string) {
         if (string != null && !string.isEmpty()) {
             return LocalDate.parse(string, dateFormatter);
         } else {
             return null;
         }
     }
 });

        Example that wraps the default formatter and catches parse exceptions: 

        
   final StringConverter<LocalDate> defaultConverter = datePicker.getConverter();
   datePicker.setConverter(new StringConverter<LocalDate>() {
       @Override public String toString(LocalDate value) {
           return defaultConverter.toString(value);
       }

       @Override public LocalDate fromString(String text) {
           try {
               return defaultConverter.fromString(text);
           } catch (DateTimeParseException ex) {
               System.err.println("HelloDatePicker: "+ex.getMessage());
               throw ex;
           }
       }
   });

        The default base year for parsing input containing only two digits for the year is 2000 (see DateTimeFormatter). This default is not useful for allowing a person's date of birth to be typed. The following example modifies the converter's fromString() method to allow a two digit year for birth dates up to 99 years in the past. 

        
   @Override public LocalDate fromString(String text) {
       if (text != null && !text.isEmpty()) {
           Locale locale = Locale.getDefault(Locale.Category.FORMAT);
           Chronology chrono = datePicker.getChronology();
           String pattern =
               DateTimeFormatterBuilder.getLocalizedDateTimePattern(FormatStyle.SHORT,
                                                                    null, chrono, locale);
           String prePattern = pattern.substring(0, pattern.indexOf("y"));
           String postPattern = pattern.substring(pattern.lastIndexOf("y")+1);
           int baseYear = LocalDate.now().getYear() - 99;
           DateTimeFormatter df = new DateTimeFormatterBuilder()
                       .parseLenient()
                       .appendPattern(prePattern)
                       .appendValueReduced(ChronoField.YEAR, 2, 2, baseYear)
                       .appendPattern(postPattern)
                       .toFormatter();
           return LocalDate.from(chrono.date(df.parse(text)));
       } else {
           return null;
       }
   }

      • getConverter

        public final StringConverter<LocalDate> getConverter​()
        Gets the value of the property converter.
        Property description:
        Converts the input text to an object of type LocalDate and vice versa.

        If not set by the application, the DatePicker skin class will set a converter based on a DateTimeFormatter for the current Locale and chronology. This formatter is then used to parse and display the current date value. Setting the value to null will restore the default converter.

        Example using an explicit formatter: 

        
 datePicker.setConverter(new StringConverter<LocalDate>() {
     String pattern = "yyyy-MM-dd";
     DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern(pattern);

     {
         datePicker.setPromptText(pattern.toLowerCase());
     }

     @Override public String toString(LocalDate date) {
         if (date != null) {
             return dateFormatter.format(date);
         } else {
             return "";
         }
     }

     @Override public LocalDate fromString(String string) {
         if (string != null && !string.isEmpty()) {
             return LocalDate.parse(string, dateFormatter);
         } else {
             return null;
         }
     }
 });

        Example that wraps the default formatter and catches parse exceptions: 

        
   final StringConverter<LocalDate> defaultConverter = datePicker.getConverter();
   datePicker.setConverter(new StringConverter<LocalDate>() {
       @Override public String toString(LocalDate value) {
           return defaultConverter.toString(value);
       }

       @Override public LocalDate fromString(String text) {
           try {
               return defaultConverter.fromString(text);
           } catch (DateTimeParseException ex) {
               System.err.println("HelloDatePicker: "+ex.getMessage());
               throw ex;
           }
       }
   });

        The default base year for parsing input containing only two digits for the year is 2000 (see DateTimeFormatter). This default is not useful for allowing a person's date of birth to be typed. The following example modifies the converter's fromString() method to allow a two digit year for birth dates up to 99 years in the past. 

        
   @Override public LocalDate fromString(String text) {
       if (text != null && !text.isEmpty()) {
           Locale locale = Locale.getDefault(Locale.Category.FORMAT);
           Chronology chrono = datePicker.getChronology();
           String pattern =
               DateTimeFormatterBuilder.getLocalizedDateTimePattern(FormatStyle.SHORT,
                                                                    null, chrono, locale);
           String prePattern = pattern.substring(0, pattern.indexOf("y"));
           String postPattern = pattern.substring(pattern.lastIndexOf("y")+1);
           int baseYear = LocalDate.now().getYear() - 99;
           DateTimeFormatter df = new DateTimeFormatterBuilder()
                       .parseLenient()
                       .appendPattern(prePattern)
                       .appendValueReduced(ChronoField.YEAR, 2, 2, baseYear)
                       .appendPattern(postPattern)
                       .toFormatter();
           return LocalDate.from(chrono.date(df.parse(text)));
       } else {
           return null;
       }
   }

      • getEditor

        public final TextField getEditor​()
        Gets the value of the property editor.
        Property description:
        The editor for the DatePicker.

      • createDefaultSkin

        protected Skin<?> createDefaultSkin​()
        Create a new instance of the default skin for this control. This is called to create a skin for the control if no skin is provided via CSS -fx-skin or set explicitly in a sub-class with setSkin(...).
        Overrides:
        createDefaultSkin in class Control
        Returns:
        new instance of default skin for this control. If null then the control will have no skin unless one is provided by css.

      • getClassCssMetaData

        public static List<CssMetaData<? extends Styleable,?>> getClassCssMetaData​()
        Returns:
        The CssMetaData associated with this class, which may include the CssMetaData of its superclasses.

      • queryAccessibleAttribute

        public Object queryAccessibleAttribute​(AccessibleAttribute attribute,
                                       Object... parameters)
        This method is called by the assistive technology to request the value for an attribute.

        This method is commonly overridden by subclasses to implement attributes that are required for a specific role.
        If a particular attribute is not handled, the superclass implementation must be called.

        Overrides:
        queryAccessibleAttribute in class ComboBoxBase<LocalDate>
        Parameters:
        attribute - the requested attribute
        parameters - optional list of parameters
        Returns:
        the value for the requested attribute
        See Also:
        AccessibleAttribute