Spec-Zone.ru › OpenJavaFX 17

Class ChoiceBox<T>

java.lang.Object
javafx.scene.Node
javafx.scene.Parent
javafx.scene.layout.Region
javafx.scene.control.Control
javafx.scene.control.ChoiceBox<T>
All Implemented Interfaces:
Styleable, EventTarget, Skinnable
@DefaultProperty("items")
public class ChoiceBox<T>
extends Control
The ChoiceBox is used for presenting the user with a relatively small set of predefined choices from which they may choose. The ChoiceBox, when "showing", will display to the user these choices and allow them to pick exactly one choice. When not showing, the current choice is displayed.

By default, the ChoiceBox has no item selected unless otherwise specified. Although the ChoiceBox will only allow a user to select from the predefined list, it is possible for the developer to specify the selected item to be something other than what is available in the predefined list. This is required for several important use cases. Configuration of the ChoiceBox is order independent. You may either specify the items and then the selected item, or you may specify the selected item and then the items. Either way will function correctly.

ChoiceBox item selection is handled by SelectionModel. As with ListView and ComboBox, it is possible to modify the SelectionModel that is used, although this is likely to be rarely changed. ChoiceBox supports only a single selection model, hence the default used is a SingleSelectionModel.

Example:

 ChoiceBox cb = new ChoiceBox();
 cb.getItems().addAll("item1", "item2", "item3");
Image of the ChoiceBox control
Since:
JavaFX 2.0

Property Summary

Properties
Type Property Description
ObjectProperty<StringConverter<T>> converter
Allows a way to specify how to represent objects in the items list.
ObjectProperty<ObservableList<T>> items
The items to display in the choice box.
ObjectProperty<EventHandler<ActionEvent>> onAction
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed.
ObjectProperty<EventHandler<Event>> onHidden
Called just after the ChoiceBox popup has been hidden.
ObjectProperty<EventHandler<Event>> onHiding
Called just prior to the ChoiceBox popup being hidden.
ObjectProperty<EventHandler<Event>> onShowing
Called just prior to the ChoiceBox popup being shown.
ObjectProperty<EventHandler<Event>> onShown
Called just after the ChoiceBox popup is shown.
ObjectProperty<SingleSelectionModel<T>> selectionModel
The selection model for the ChoiceBox.
ReadOnlyBooleanProperty showing
Indicates whether the drop down is displaying the list of choices to the user.
ObjectProperty<T> value
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model.

Properties declared in class javafx.scene.control.Control

contextMenu, skin, tooltip

Properties declared in class javafx.scene.layout.Region

background, border, cacheShape, centerShape, height, insets, maxHeight, maxWidth, minHeight, minWidth, opaqueInsets, padding, prefHeight, prefWidth, scaleShape, shape, snapToPixel, width

Properties declared in class javafx.scene.Parent

needsLayout

Properties declared in class javafx.scene.Node

accessibleHelp, accessibleRoleDescription, accessibleRole, accessibleText, blendMode, boundsInLocal, boundsInParent, cacheHint, cache, clip, cursor, depthTest, disabled, disable, effectiveNodeOrientation, effect, eventDispatcher, focused, focusTraversable, hover, id, inputMethodRequests, layoutBounds, layoutX, layoutY, localToParentTransform, localToSceneTransform, managed, mouseTransparent, nodeOrientation, onContextMenuRequested, onDragDetected, onDragDone, onDragDropped, onDragEntered, onDragExited, onDragOver, onInputMethodTextChanged, onKeyPressed, onKeyReleased, onKeyTyped, onMouseClicked, onMouseDragEntered, onMouseDragExited, onMouseDragged, onMouseDragOver, onMouseDragReleased, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onRotate, onRotationFinished, onRotationStarted, onScrollFinished, onScroll, onScrollStarted, onSwipeDown, onSwipeLeft, onSwipeRight, onSwipeUp, onTouchMoved, onTouchPressed, onTouchReleased, onTouchStationary, onZoomFinished, onZoom, onZoomStarted, opacity, parent, pickOnBounds, pressed, rotate, rotationAxis, scaleX, scaleY, scaleZ, scene, style, translateX, translateY, translateZ, viewOrder, visible

Field Summary

Fields
Modifier and Type Field Description
static EventType<Event> ON_HIDDEN
Called when the ChoiceBox popup has been hidden.
static EventType<Event> ON_HIDING
Called when the ChoiceBox popup will be hidden.
static EventType<Event> ON_SHOWING
Called prior to the ChoiceBox showing its popup after the user has clicked or otherwise interacted with the ChoiceBox.
static EventType<Event> ON_SHOWN
Called after the ChoiceBox has shown its popup.

Fields declared in class javafx.scene.layout.Region

USE_COMPUTED_SIZE, USE_PREF_SIZE

Fields declared in class javafx.scene.Node

BASELINE_OFFSET_SAME_AS_HEIGHT

Constructor Summary

Constructors
Constructor Description
ChoiceBox()
Create a new ChoiceBox which has an empty list of items.
ChoiceBox​(ObservableList<T> items)
Create a new ChoiceBox with the given set of items.

Method Summary

Modifier and Type Method Description
ObjectProperty<StringConverter<T>> converterProperty()
Allows a way to specify how to represent objects in the items list.
StringConverter<T> getConverter()
Gets the value of the property converter.
ObservableList<T> getItems()
Gets the value of the property items.
EventHandler<ActionEvent> getOnAction()
Gets the value of the property onAction.
EventHandler<Event> getOnHidden()
Gets the value of the property onHidden.
EventHandler<Event> getOnHiding()
Gets the value of the property onHiding.
EventHandler<Event> getOnShowing()
Gets the value of the property onShowing.
EventHandler<Event> getOnShown()
Gets the value of the property onShown.
SingleSelectionModel<T> getSelectionModel()
Gets the value of the property selectionModel.
T getValue()
Gets the value of the property value.
void hide()
Closes the list of choices.
boolean isShowing()
Gets the value of the property showing.
ObjectProperty<ObservableList<T>> itemsProperty()
The items to display in the choice box.
ObjectProperty<EventHandler<ActionEvent>> onActionProperty()
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed.
ObjectProperty<EventHandler<Event>> onHiddenProperty()
Called just after the ChoiceBox popup has been hidden.
ObjectProperty<EventHandler<Event>> onHidingProperty()
Called just prior to the ChoiceBox popup being hidden.
ObjectProperty<EventHandler<Event>> onShowingProperty()
Called just prior to the ChoiceBox popup being shown.
ObjectProperty<EventHandler<Event>> onShownProperty()
Called just after the ChoiceBox popup is shown.
ObjectProperty<SingleSelectionModel<T>> selectionModelProperty()
The selection model for the ChoiceBox.
void setConverter​(StringConverter<T> value)
Sets the value of the property converter.
void setItems​(ObservableList<T> value)
Sets the value of the property items.
void setOnAction​(EventHandler<ActionEvent> value)
Sets the value of the property onAction.
void setOnHidden​(EventHandler<Event> value)
Sets the value of the property onHidden.
void setOnHiding​(EventHandler<Event> value)
Sets the value of the property onHiding.
void setOnShowing​(EventHandler<Event> value)
Sets the value of the property onShowing.
void setOnShown​(EventHandler<Event> value)
Sets the value of the property onShown.
void setSelectionModel​(SingleSelectionModel<T> value)
Sets the value of the property selectionModel.
void setValue​(T value)
Sets the value of the property value.
void show()
Opens the list of choices.
ReadOnlyBooleanProperty showingProperty()
Indicates whether the drop down is displaying the list of choices to the user.
ObjectProperty<T> valueProperty()
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model.

Methods declared in class javafx.scene.control.Control

computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, contextMenuProperty, createDefaultSkin, getClassCssMetaData, getContextMenu, getControlCssMetaData, getCssMetaData, getInitialFocusTraversable, getTooltip, isResizable, setContextMenu, setTooltip, skinProperty, tooltipProperty

Methods declared in class javafx.scene.layout.Region

backgroundProperty, borderProperty, cacheShapeProperty, centerShapeProperty, computePrefHeight, computePrefWidth, getBackground, getBorder, getHeight, getInsets, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOpaqueInsets, getPadding, getPrefHeight, getPrefWidth, getShape, getUserAgentStylesheet, getWidth, heightProperty, insetsProperty, isCacheShape, isCenterShape, isScaleShape, isSnapToPixel, layoutInArea, layoutInArea, layoutInArea, layoutInArea, maxHeight, maxHeightProperty, maxWidth, maxWidthProperty, minHeight, minHeightProperty, minWidth, minWidthProperty, opaqueInsetsProperty, paddingProperty, positionInArea, positionInArea, prefHeight, prefHeightProperty, prefWidth, prefWidthProperty, resize, scaleShapeProperty, setBackground, setBorder, setCacheShape, setCenterShape, setHeight, setMaxHeight, setMaxSize, setMaxWidth, setMinHeight, setMinSize, setMinWidth, setOpaqueInsets, setPadding, setPrefHeight, setPrefSize, setPrefWidth, setScaleShape, setShape, setSnapToPixel, setWidth, shapeProperty, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapPositionX, snapPositionY, snapSize, snapSizeX, snapSizeY, snapSpace, snapSpaceX, snapSpaceY, snapToPixelProperty, widthProperty

Methods declared in class javafx.scene.Parent

getBaselineOffset, getChildren, getChildrenUnmodifiable, getManagedChildren, getStylesheets, isNeedsLayout, layout, layoutChildren, needsLayoutProperty, requestLayout, requestParentLayout, setNeedsLayout, updateBounds

Methods declared in class javafx.scene.Node

accessibleHelpProperty, accessibleRoleDescriptionProperty, accessibleRoleProperty, accessibleTextProperty, addEventFilter, addEventHandler, applyCss, autosize, blendModeProperty, boundsInLocalProperty, boundsInParentProperty, buildEventDispatchChain, cacheHintProperty, cacheProperty, clipProperty, computeAreaInScreen, contains, contains, cursorProperty, depthTestProperty, disabledProperty, disableProperty, effectiveNodeOrientationProperty, effectProperty, eventDispatcherProperty, executeAccessibleAction, fireEvent, focusedProperty, focusTraversableProperty, getAccessibleHelp, getAccessibleRole, getAccessibleRoleDescription, getAccessibleText, getBlendMode, getBoundsInLocal, getBoundsInParent, getCacheHint, getClip, getContentBias, getCursor, getDepthTest, getEffect, getEffectiveNodeOrientation, getEventDispatcher, getId, getInitialCursor, getInputMethodRequests, getLayoutBounds, getLayoutX, getLayoutY, getLocalToParentTransform, getLocalToSceneTransform, getNodeOrientation, getOnContextMenuRequested, getOnDragDetected, getOnDragDone, getOnDragDropped, getOnDragEntered, getOnDragExited, getOnDragOver, getOnInputMethodTextChanged, getOnKeyPressed, getOnKeyReleased, getOnKeyTyped, getOnMouseClicked, getOnMouseDragEntered, getOnMouseDragExited, getOnMouseDragged, getOnMouseDragOver, getOnMouseDragReleased, getOnMouseEntered, getOnMouseExited, getOnMouseMoved, getOnMousePressed, getOnMouseReleased, getOnRotate, getOnRotationFinished, getOnRotationStarted, getOnScroll, getOnScrollFinished, getOnScrollStarted, getOnSwipeDown, getOnSwipeLeft, getOnSwipeRight, getOnSwipeUp, getOnTouchMoved, getOnTouchPressed, getOnTouchReleased, getOnTouchStationary, getOnZoom, getOnZoomFinished, getOnZoomStarted, getOpacity, getParent, getProperties, getPseudoClassStates, getRotate, getRotationAxis, getScaleX, getScaleY, getScaleZ, getScene, getStyle, getStyleableParent, getTransforms, getTranslateX, getTranslateY, getTranslateZ, getTypeSelector, getUserData, getViewOrder, hasProperties, hoverProperty, idProperty, inputMethodRequestsProperty, intersects, intersects, isCache, isDisable, isDisabled, isFocused, isFocusTraversable, isHover, isManaged, isMouseTransparent, isPickOnBounds, isPressed, isVisible, layoutBoundsProperty, layoutXProperty, layoutYProperty, localToParent, localToParent, localToParent, localToParent, localToParent, localToParentTransformProperty, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToSceneTransformProperty, localToScreen, localToScreen, localToScreen, localToScreen, localToScreen, lookup, lookupAll, managedProperty, mouseTransparentProperty, nodeOrientationProperty, notifyAccessibleAttributeChanged, onContextMenuRequestedProperty, onDragDetectedProperty, onDragDoneProperty, onDragDroppedProperty, onDragEnteredProperty, onDragExitedProperty, onDragOverProperty, onInputMethodTextChangedProperty, onKeyPressedProperty, onKeyReleasedProperty, onKeyTypedProperty, onMouseClickedProperty, onMouseDragEnteredProperty, onMouseDragExitedProperty, onMouseDraggedProperty, onMouseDragOverProperty, onMouseDragReleasedProperty, onMouseEnteredProperty, onMouseExitedProperty, onMouseMovedProperty, onMousePressedProperty, onMouseReleasedProperty, onRotateProperty, onRotationFinishedProperty, onRotationStartedProperty, onScrollFinishedProperty, onScrollProperty, onScrollStartedProperty, onSwipeDownProperty, onSwipeLeftProperty, onSwipeRightProperty, onSwipeUpProperty, onTouchMovedProperty, onTouchPressedProperty, onTouchReleasedProperty, onTouchStationaryProperty, onZoomFinishedProperty, onZoomProperty, onZoomStartedProperty, opacityProperty, parentProperty, parentToLocal, parentToLocal, parentToLocal, parentToLocal, parentToLocal, pickOnBoundsProperty, pressedProperty, pseudoClassStateChanged, queryAccessibleAttribute, relocate, removeEventFilter, removeEventHandler, requestFocus, resizeRelocate, rotateProperty, rotationAxisProperty, scaleXProperty, scaleYProperty, scaleZProperty, sceneProperty, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, screenToLocal, screenToLocal, screenToLocal, setAccessibleHelp, setAccessibleRole, setAccessibleRoleDescription, setAccessibleText, setBlendMode, setCache, setCacheHint, setClip, setCursor, setDepthTest, setDisable, setDisabled, setEffect, setEventDispatcher, setEventHandler, setFocused, setFocusTraversable, setHover, setId, setInputMethodRequests, setLayoutX, setLayoutY, setManaged, setMouseTransparent, setNodeOrientation, setOnContextMenuRequested, setOnDragDetected, setOnDragDone, setOnDragDropped, setOnDragEntered, setOnDragExited, setOnDragOver, setOnInputMethodTextChanged, setOnKeyPressed, setOnKeyReleased, setOnKeyTyped, setOnMouseClicked, setOnMouseDragEntered, setOnMouseDragExited, setOnMouseDragged, setOnMouseDragOver, setOnMouseDragReleased, setOnMouseEntered, setOnMouseExited, setOnMouseMoved, setOnMousePressed, setOnMouseReleased, setOnRotate, setOnRotationFinished, setOnRotationStarted, setOnScroll, setOnScrollFinished, setOnScrollStarted, setOnSwipeDown, setOnSwipeLeft, setOnSwipeRight, setOnSwipeUp, setOnTouchMoved, setOnTouchPressed, setOnTouchReleased, setOnTouchStationary, setOnZoom, setOnZoomFinished, setOnZoomStarted, setOpacity, setPickOnBounds, setPressed, setRotate, setRotationAxis, setScaleX, setScaleY, setScaleZ, setStyle, setTranslateX, setTranslateY, setTranslateZ, setUserData, setViewOrder, setVisible, snapshot, snapshot, startDragAndDrop, startFullDrag, styleProperty, toBack, toFront, toString, translateXProperty, translateYProperty, translateZProperty, usesMirroring, viewOrderProperty, visibleProperty

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods declared in interface javafx.scene.control.Skinnable

getSkin, setSkin

Methods declared in interface javafx.css.Styleable

getStyleableNode, getStyleClass

Property Details

selectionModel

public final ObjectProperty<SingleSelectionModel<T>> selectionModelProperty
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
See Also:
getSelectionModel(), setSelectionModel(SingleSelectionModel)

showing

public final ReadOnlyBooleanProperty showingProperty
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.
See Also:
isShowing()

items

public final ObjectProperty<ObservableList<T>> itemsProperty
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.
See Also:
getItems(), setItems(ObservableList)

converter

public ObjectProperty<StringConverter<T>> converterProperty
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the javafx.util.converter package can be set.
Since:
JavaFX 2.1
See Also:
getConverter(), setConverter(StringConverter)

value

public ObjectProperty<T> valueProperty
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1
See Also:
getValue(), setValue(T)

onAction

public final ObjectProperty<EventHandler<ActionEvent>> onActionProperty
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed. This may be due to the value property being programmatically changed or when the user selects an item in a popup menu.
Since:
JavaFX 8u60
See Also:
getOnAction(), setOnAction(EventHandler)

onShowing

public final ObjectProperty<EventHandler<Event>> onShowingProperty
Called just prior to the ChoiceBox popup being shown.
Since:
JavaFX 8u60
See Also:
getOnShowing(), setOnShowing(EventHandler)

onShown

public final ObjectProperty<EventHandler<Event>> onShownProperty
Called just after the ChoiceBox popup is shown.
Since:
JavaFX 8u60
See Also:
getOnShown(), setOnShown(EventHandler)

onHiding

public final ObjectProperty<EventHandler<Event>> onHidingProperty
Called just prior to the ChoiceBox popup being hidden.
Since:
JavaFX 8u60
See Also:
getOnHiding(), setOnHiding(EventHandler)

onHidden

public final ObjectProperty<EventHandler<Event>> onHiddenProperty
Called just after the ChoiceBox popup has been hidden.
Since:
JavaFX 8u60
See Also:
getOnHidden(), setOnHidden(EventHandler)

Field Details

ON_SHOWING

public static final EventType<Event> ON_SHOWING
Called prior to the ChoiceBox showing its popup after the user has clicked or otherwise interacted with the ChoiceBox.
Since:
JavaFX 8u60

ON_SHOWN

public static final EventType<Event> ON_SHOWN
Called after the ChoiceBox has shown its popup.
Since:
JavaFX 8u60

ON_HIDING

public static final EventType<Event> ON_HIDING
Called when the ChoiceBox popup will be hidden.
Since:
JavaFX 8u60

ON_HIDDEN

public static final EventType<Event> ON_HIDDEN
Called when the ChoiceBox popup has been hidden.
Since:
JavaFX 8u60

Constructor Details

ChoiceBox

public ChoiceBox()
Create a new ChoiceBox which has an empty list of items.

ChoiceBox

public ChoiceBox(ObservableList<T> items)
Create a new ChoiceBox with the given set of items. Since it is observable, the content of this list may change over time and the ChoiceBox will be updated accordingly.
Parameters:
items - the set of items

Method Details

setSelectionModel

public final void setSelectionModel(SingleSelectionModel<T> value)
Sets the value of the property selectionModel.
Property description:
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.

getSelectionModel

public final SingleSelectionModel<T> getSelectionModel()
Gets the value of the property selectionModel.
Property description:
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.

selectionModelProperty

public final ObjectProperty<SingleSelectionModel<T>> selectionModelProperty()
The selection model for the ChoiceBox. Only a single choice can be made, hence, the ChoiceBox supports only a SingleSelectionModel. Generally, the main interaction with the selection model is to explicitly set which item in the items list should be selected, or to listen to changes in the selection to know which item has been chosen.
See Also:
getSelectionModel(), setSelectionModel(SingleSelectionModel)

isShowing

public final boolean isShowing()
Gets the value of the property showing.
Property description:
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.

showingProperty

public final ReadOnlyBooleanProperty showingProperty()
Indicates whether the drop down is displaying the list of choices to the user. This is a readonly property which should be manipulated by means of the #show and #hide methods.
See Also:
isShowing()

setItems

public final void setItems(ObservableList<T> value)
Sets the value of the property items.
Property description:
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.

getItems

public final ObservableList<T> getItems()
Gets the value of the property items.
Property description:
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.

itemsProperty

public final ObjectProperty<ObservableList<T>> itemsProperty()
The items to display in the choice box. The selected item (as indicated in the selection model) must always be one of these items.
See Also:
getItems(), setItems(ObservableList)

converterProperty

public ObjectProperty<StringConverter<T>> converterProperty()
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the javafx.util.converter package can be set.
Since:
JavaFX 2.1
See Also:
getConverter(), setConverter(StringConverter)

setConverter

public final void setConverter(StringConverter<T> value)
Sets the value of the property converter.
Property description:
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the javafx.util.converter package can be set.
Since:
JavaFX 2.1

getConverter

public final StringConverter<T> getConverter()
Gets the value of the property converter.
Property description:
Allows a way to specify how to represent objects in the items list. When a StringConverter is set, the object toString method is not called and instead its toString(object T) is called, passing the objects in the items list. This is useful when using domain objects in a ChoiceBox as this property allows for customization of the representation. Also, any of the pre-built Converters available in the javafx.util.converter package can be set.
Since:
JavaFX 2.1

valueProperty

public ObjectProperty<T> valueProperty()
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1
See Also:
getValue(), setValue(T)

setValue

public final void setValue(T value)
Sets the value of the property value.
Property description:
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1

getValue

public final T getValue()
Gets the value of the property value.
Property description:
The value of this ChoiceBox is defined as the selected item in the ChoiceBox selection model. The valueProperty is synchronized with the selectedItem. This property allows for bi-directional binding of external properties to the ChoiceBox and updates the selection model accordingly.
Since:
JavaFX 2.1

onActionProperty

public final ObjectProperty<EventHandler<ActionEvent>> onActionProperty()
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed. This may be due to the value property being programmatically changed or when the user selects an item in a popup menu.
Since:
JavaFX 8u60
See Also:
getOnAction(), setOnAction(EventHandler)

setOnAction

public final void setOnAction(EventHandler<ActionEvent> value)
Sets the value of the property onAction.
Property description:
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed. This may be due to the value property being programmatically changed or when the user selects an item in a popup menu.
Since:
JavaFX 8u60

getOnAction

public final EventHandler<ActionEvent> getOnAction()
Gets the value of the property onAction.
Property description:
The ChoiceBox action, which is invoked whenever the ChoiceBox value property is changed. This may be due to the value property being programmatically changed or when the user selects an item in a popup menu.
Since:
JavaFX 8u60

onShowingProperty

public final ObjectProperty<EventHandler<Event>> onShowingProperty()
Called just prior to the ChoiceBox popup being shown.
Since:
JavaFX 8u60
See Also:
getOnShowing(), setOnShowing(EventHandler)

setOnShowing

public final void setOnShowing(EventHandler<Event> value)
Sets the value of the property onShowing.
Property description:
Called just prior to the ChoiceBox popup being shown.
Since:
JavaFX 8u60

getOnShowing

public final EventHandler<Event> getOnShowing()
Gets the value of the property onShowing.
Property description:
Called just prior to the ChoiceBox popup being shown.
Since:
JavaFX 8u60

onShownProperty

public final ObjectProperty<EventHandler<Event>> onShownProperty()
Called just after the ChoiceBox popup is shown.
Since:
JavaFX 8u60
See Also:
getOnShown(), setOnShown(EventHandler)

setOnShown

public final void setOnShown(EventHandler<Event> value)
Sets the value of the property onShown.
Property description:
Called just after the ChoiceBox popup is shown.
Since:
JavaFX 8u60

getOnShown

public final EventHandler<Event> getOnShown()
Gets the value of the property onShown.
Property description:
Called just after the ChoiceBox popup is shown.
Since:
JavaFX 8u60

onHidingProperty

public final ObjectProperty<EventHandler<Event>> onHidingProperty()
Called just prior to the ChoiceBox popup being hidden.
Since:
JavaFX 8u60
See Also:
getOnHiding(), setOnHiding(EventHandler)

setOnHiding

public final void setOnHiding(EventHandler<Event> value)
Sets the value of the property onHiding.
Property description:
Called just prior to the ChoiceBox popup being hidden.
Since:
JavaFX 8u60

getOnHiding

public final EventHandler<Event> getOnHiding()
Gets the value of the property onHiding.
Property description:
Called just prior to the ChoiceBox popup being hidden.
Since:
JavaFX 8u60

onHiddenProperty

public final ObjectProperty<EventHandler<Event>> onHiddenProperty()
Called just after the ChoiceBox popup has been hidden.
Since:
JavaFX 8u60
See Also:
getOnHidden(), setOnHidden(EventHandler)

setOnHidden

public final void setOnHidden(EventHandler<Event> value)
Sets the value of the property onHidden.
Property description:
Called just after the ChoiceBox popup has been hidden.
Since:
JavaFX 8u60

getOnHidden

public final EventHandler<Event> getOnHidden()
Gets the value of the property onHidden.
Property description:
Called just after the ChoiceBox popup has been hidden.
Since:
JavaFX 8u60

show

public void show()
Opens the list of choices.

hide

public void hide()
Closes the list of choices.

© 2008, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Spec-Zone.ru

Настройки Оффлайн Что нового Помощь О нас
Spec-Zone .ru
спецификации, руководства, описания, API