Package com.smartgwt.client.widgets.form.fields

# Class MultiComboBoxItem

java.lang.Object
com.smartgwt.client.core.JsObject
com.smartgwt.client.core.DataClass
com.smartgwt.client.core.RefDataClass
com.smartgwt.client.data.Field
com.smartgwt.client.widgets.form.fields.FormItem
com.smartgwt.client.widgets.form.fields.CanvasItem
com.smartgwt.client.widgets.form.fields.MultiComboBoxItem

All Implemented Interfaces:
  `HasHandlers`, `HasBlurHandlers`, `HasCanEditChangedHandlers`, `HasChangedHandlers`, `HasChangeHandlers`, `HasClickHandlers`, `HasDoubleClickHandlers`, `HasEditorEnterHandlers`, `HasEditorExitHandlers`, `HasFocusHandlers`, `HasIconClickHandlers`, `HasIconKeyPressHandlers`, `HasItemHoverHandlers`, `HasKeyDownHandlers`, `HasKeyPressHandlers`, `HasKeyUpHandlers`, `HasPendingStatusChangedHandlers`, `HasPickerIconClickHandlers`, `HasReadOnlyDisplayChangedHandlers`, `HasShowContextMenuHandlers`, `HasShowValueHandlers`, `HasTitleClickHandlers`, `HasTitleDoubleClickHandlers`, `HasTitleHoverHandlers`, `HasValueHoverHandlers`, `HasValueIconClickHandlers`

public class MultiComboBoxItem extends CanvasItem
A MultiComboBoxItem is a combo box that allows the user to select multiple options. Each selected option is represented as a button that can be clicked to deselect the option. The relative layout of the buttons to the combo box is specified with the `layoutStyle` attribute. The buttons will be kept in the order that they were added, with the most recently added button being adjacent to the combo box. `MultiComboBoxItem` uses the `com.smartgwt.client.types.AutoChild` pattern to construct the `comboBox` and the `buttons` so that they can be easily customized. For example, you can customize the criteria used to fetch by using `ComboBoxItem.setPickListFilterCriteriaFunction()` with `setComboBoxProperties()`.

See Also:
  - `ComboBoxItem`

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class com.smartgwt.client.widgets.form.fields.FormItem

  `FormItem.CustomStateGetter, FormItem.StateCustomizer`

- ## Field Summary

  ### Fields inherited from class com.smartgwt.client.widgets.form.fields.FormItem

  `configOnly, scClassName, warnOnEditorTypeConversion, warnOnEditorTypeConversionDefault`

  ### Fields inherited from class com.smartgwt.client.core.RefDataClass

  `id`

  ### Fields inherited from class com.smartgwt.client.core.DataClass

  `factoryCreated, factoryProperties`

  ### Fields inherited from class com.smartgwt.client.core.JsObject

  `jsObj`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `MultiComboBoxItem()`
  `MultiComboBoxItem(JavaScriptObject jsObj)`
  `MultiComboBoxItem(String name)`
  `MultiComboBoxItem(String name, String title)`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static void`
  `changeAutoChildDefaults(String autoChildName, Canvas defaults)`
  Changes the defaults for Canvas AutoChildren named `autoChildName`.
  `static void`
  `changeAutoChildDefaults(String autoChildName, FormItem defaults)`
  Changes the defaults for FormItem AutoChildren named `autoChildName`.
  `static void`
  `changePickerIconDefaults(FormItemIcon defaults)`
  `Boolean`
  `getAddUnknownValues()`
  Similar to `ComboBoxItem.addUnknownValues`, controls whether additional values can be added to the ComboBox or whether the user must choose from the available values in the picklist only.
  `Boolean`
  `getAlwaysExitOnTab()`
  If true, hitting tab always exits the field, and will also add a value to the list of selected values if there is match (and depending on the setting for `addUnknownValues`).
  `Boolean`
  `getAutoFetchData()`
  Should the MultiComboBoxItem fetch data from the `data source` immediately or wait until the user first opens the pickList.
  `Boolean`
  `getAutoFitButtons()`
  Specifies whether to autofit the buttons in the MultiComboBoxItem.
  `String`
  `getAutoOpenTree()`
  When this item is showing a tree-based picker, which nodes should be opened automatically.
  `IButton`
  `getButton()`
  Note : This API is non-functional (always returns null) and exists only to make you aware that this MultiAutoChild exists.
  `IButton`
  `getButtonDefaults()`
  Default properties to be used in creating each `IButton`.
  `IButton`
  `getButtonProperties()`
  Properties to be used in creating each option button.
  `ComboBoxItem`
  `getComboBox()`
  An `com.smartgwt.client.types.AutoChild` attribute to create the combo box in a MultiComboBoxItem.
  `ComboBoxItem`
  `getComboBoxDefaults()`
  Default properties for the `ComboBoxItem` in a MultiComboBoxItem.
  `ComboBoxItem`
  `getComboBoxProperties()`
  Properties to be used in creating a `ComboBoxItem`.
  `int`
  `getComboBoxWidth()`
  Specifies the size of the combo box field.
  `DynamicForm`
  `getComboForm()`
  The `DynamicForm` holding the `comboBox`.
  `String`
  `getDataSetType()`
  Whether to show the picker as a flat list, or a collapsible tree.
  `String`
  `getDeselectedButtonStyle()`
  When `showDeletions` is `true`, the `Button.baseStyle` used on `buttons` for values that have been deleted (also called "deselected buttons").
  `String`
  `getDisplayField()`
  The `displayField` of the combo box.
  `MultiComboBoxLayoutStyle`
  `getLayoutStyle()`
  Specifies the layout style of the combo box and the buttons in the MultiComboBoxItem.
  `DataSource`
  `getOptionDataSource()`
  The `optionDataSource` of the combo box.
  `String`
  `getOptionOperationId()`
  If this item has a specified `optionDataSource`, this attribute may be set to specify an explicit `DSRequest.operationId` when performing a fetch against the option dataSource to pick up display value mapping.
  `static MultiComboBoxItem`
  `getOrCreateRef(JavaScriptObject jsObj)`
  `String`
  `getPendingButtonStyle()`
  When `showPending` is `true`, the `Button.baseStyle` used on `buttons` that are in the "Pending" visual state.
  `String`
  `getPickListConstructor()`
  The Class to use when creating a picker of type "list" for a FormItem.
  `String`
  `getPickTreeConstructor()`
  The Class to use when creating a picker of type "tree" for a FormItem.
  `String`
  `getRootNodeId()`
  When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
  `Integer`
  `getRootNodeIdAsInt()`
  When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
  `Boolean`
  `getShouldSaveValue()`
  Should this item's value be saved in the form's values and hence returned from `form.getValues()`?
  `Boolean`
  `getUseInsertionOrder()`
  Specifies whether to arrange the buttons of the MultiComboBoxItem in the order that they were selected (the default), or to sort the buttons by `displayField`.
  `String`
  `getValueField()`
  The `valueField` of the combo box.
  `Layout`
  `getValueLayout()`
  Note : This API is non-functional (always returns null) and exists only to make you aware that this MultiAutoChild exists.
  `final String[]`
  `getValues()`
  `boolean`
  `pendingStatusChanged(DynamicForm form, FormItem item, boolean pendingStatus, Object newValue, Object value)`
  Notification method called when `showPending` is enabled and this `MultiComboBoxItem` should either clear or show its pending visual state.
  `MultiComboBoxItem`
  `setAddUnknownValues(Boolean addUnknownValues)`
  Similar to `ComboBoxItem.addUnknownValues`, controls whether additional values can be added to the ComboBox or whether the user must choose from the available values in the picklist only.
  `MultiComboBoxItem`
  `setAlwaysExitOnTab(Boolean alwaysExitOnTab)`
  If true, hitting tab always exits the field, and will also add a value to the list of selected values if there is match (and depending on the setting for `addUnknownValues`).
  `MultiComboBoxItem`
  `setAutoFetchData(Boolean autoFetchData)`
  Should the MultiComboBoxItem fetch data from the `data source` immediately or wait until the user first opens the pickList.
  `MultiComboBoxItem`
  `setAutoFitButtons(Boolean autoFitButtons)`
  Specifies whether to autofit the buttons in the MultiComboBoxItem.
  `MultiComboBoxItem`
  `setAutoOpenTree(String autoOpenTree)`
  When this item is showing a tree-based picker, which nodes should be opened automatically.
  `void`
  `setButtonProperties(IButton buttonProperties)`
  Properties to be used in creating each option button.
  `void`
  `setComboBoxProperties(ComboBoxItem comboBoxProperties)`
  Properties to be used in creating a `ComboBoxItem`.
  `MultiComboBoxItem`
  `setComboBoxWidth(int comboBoxWidth)`
  Specifies the size of the combo box field.
  `MultiComboBoxItem`
  `setDataSetType(String dataSetType)`
  Whether to show the picker as a flat list, or a collapsible tree.
  `static void`
  `setDefaultProperties(MultiComboBoxItem multiComboBoxItemProperties)`
  Class level method to set the default properties of this class.
  `MultiComboBoxItem`
  `setDeselectedButtonStyle(String deselectedButtonStyle)`
  When `showDeletions` is `true`, the `Button.baseStyle` used on `buttons` for values that have been deleted (also called "deselected buttons").
  `MultiComboBoxItem`
  `setDisplayField(String displayField)`
  The `displayField` of the combo box.
  `MultiComboBoxItem`
  `setLayoutStyle(MultiComboBoxLayoutStyle layoutStyle)`
  Specifies the layout style of the combo box and the buttons in the MultiComboBoxItem.
  `MultiComboBoxItem`
  `setOptionDataSource(DataSource optionDataSource)`
  The `optionDataSource` of the combo box.
  `MultiComboBoxItem`
  `setOptionOperationId(String optionOperationId)`
  If this item has a specified `optionDataSource`, this attribute may be set to specify an explicit `DSRequest.operationId` when performing a fetch against the option dataSource to pick up display value mapping.
  `MultiComboBoxItem`
  `setPendingButtonStyle(String pendingButtonStyle)`
  When `showPending` is `true`, the `Button.baseStyle` used on `buttons` that are in the "Pending" visual state.
  `MultiComboBoxItem`
  `setPickListConstructor(String pickListConstructor)`
  The Class to use when creating a picker of type "list" for a FormItem.
  `MultiComboBoxItem`
  `setPickTreeConstructor(String pickTreeConstructor)`
  The Class to use when creating a picker of type "tree" for a FormItem.
  `MultiComboBoxItem`
  `setRootNodeId(Integer rootNodeId)`
  When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
  `MultiComboBoxItem`
  `setRootNodeId(String rootNodeId)`
  When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
  `MultiComboBoxItem`
  `setShouldSaveValue(Boolean shouldSaveValue)`
  Should this item's value be saved in the form's values and hence returned from `form.getValues()`?
  `MultiComboBoxItem`
  `setUseInsertionOrder(Boolean useInsertionOrder)`
  Specifies whether to arrange the buttons of the MultiComboBoxItem in the order that they were selected (the default), or to sort the buttons by `displayField`.
  `MultiComboBoxItem`
  `setValueField(String valueField)`
  The `valueField` of the combo box.
  `void`
  `setValues(Object... values)`
  `void`
  `showValue(Object displayValue, Object dataValue, DynamicForm form, CanvasItem item)`
  This method will be called whenever this FormItem's value is being set via a programmatic call to e.g: `DynamicForm.setValues()` or `FormItem.setValue()` and may be overridden by CanvasItems intended to support displaying data values to update the embedded Canvas to reflect the value passed in.

  ### Methods inherited from class com.smartgwt.client.widgets.form.fields.CanvasItem

  `addCanEditChangedHandler, addReadOnlyDisplayChangedHandler, addShowValueHandler, createCanvas, getApplyPromptToCanvas, getAutoDestroy, getCanvas, getEditCriteriaInInnerForm, getHeight, getHeightAsString, getMaxHeight, getMinHeight, getMultiple, getOverflow, getPrompt, hasAdvancedCriteria, isFocused, setApplyPromptToCanvas, setAutoDestroy, setCanEditCriterionPredicate, setCanvas, setCriterionGetter, setCriterionSetter, setDefaultProperties, setEditCriteriaInInnerForm, setHeight, setHeight, setMaxHeight, setMinHeight, setMultiple, setOverflow, setPrompt, setShouldDisableCanvasCustomizer, setupCanvasConstructor, storeValue, storeValue, storeValue, updateCanvasTabPosition`

  ### Methods inherited from class com.smartgwt.client.widgets.form.fields.FormItem

  `_getValue, addBlurHandler, addChangedHandler, addChangeHandler, addClickHandler, addDoubleClickHandler, addEditorEnterHandler, addEditorExitHandler, addFocusHandler, addIcon, addIcon, addIconClickHandler, addIconKeyPressHandler, addItemHoverHandler, addKeyDownHandler, addKeyPressHandler, addKeyUpHandler, addPendingStatusChangedHandler, addPickerIconClickHandler, addShowContextMenuHandler, addTitleClickHandler, addTitleDoubleClickHandler, addTitleHoverHandler, addValueHoverHandler, addValueIconClickHandler, applyFormula, asSGWTComponent, blurItem, canEditCriterion, checkFormItemType, clearErrors, clearValue, disable, disableIcon, enable, enableIcon, error, error, errorIfNotCreated, focusAfterItem, focusInItem, getAccessKey, getAlign, getAllowExpressions, getAlwaysFetchMissingValues, getAlwaysShowControlBox, getApplyAlignToText, getApplyHeightToTextBox, getAriaRole, getAttribute, getAttributeAsBoolean, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsFloat, getAttributeAsInt, getAttributeAsJavaScriptObject, getAttributeAsObject, getAttributeAsString, getAutoComplete, getAutoCompleteKeywords, getBrowserInputType, getBrowserSpellCheck, getCanEdit, getCanEditOpaqueValues, getCanFocus, getCanHover, getCanSelectText, getCanTabToIcons, getCanvasAutoChild, getCellHeight, getCellStyle, getChangeOnKeypress, getClassName, getClipStaticValue, getClipTitle, getConfig, getContainerWidget, getControlStyle, getCriteriaField, getCriterion, getCriterion, getCursorPosition, getCustomState, getDataPath, getDateFormatter, getDecimalPad, getDecimalPrecision, getDefaultIconSrc, getDefaultOperator, getDefaultValue, getDestroyed, getDisabled, getDisabledHover, getDisableIconsOnReadOnly, getDisplayFieldName, getDisplayValue, getDisplayValue, getEditorTypeConfig, getEditPendingCSSText, getEditProxyConstructor, getEmptyDisplayValue, getEmptyValueIcon, getEndRow, getErrorIconHeight, getErrorIconProperties, getErrorIconSrc, getErrorIconWidth, getErrorMessageWidth, getErrors, getEscapeHTML, getExportFormat, getExtraControlTableCSS, getExtraTextBoxCSS, getFetchMissingValues, getFieldName, getFilterLocally, getForeignDisplayField, getForm, getFormat, getFormItemAutoChild, getFormula, getFullDataPath, getGlobalTabIndex, getGridColNum, getGridRowNum, getHidden, getHint, getHintStyle, getHoverAlign, getHoverDelay, getHoverFocusKey, getHoverHeight, getHoverHeightAsString, getHoverOpacity, getHoverPersist, getHoverStyle, getHoverVAlign, getHoverWidth, getHoverWidthAsString, getIcon, getIconBaseStyle, getIconHeight, getIconHSpace, getIconPageRect, getIconPrompt, getIconRect, getIcons, getIconTabPosition, getIconVAlign, getIconWidth, getID, getImageURLPrefix, getImageURLSuffix, getImplicitSave, getImplicitSaveOnBlur, getInputFormat, getLeft, getLinearColSpan, getLinearColSpanAsString, getLinearEndRow, getLinearEndRowAsString, getLinearStartRow, getLinearStartRowAsString, getLinearWidth, getLinearWidthAsString, getListGrid, getLoadingDisplayValue, getLocateItemBy, getMinHintWidth, getMultipleValueSeparator, getName, getNullOriginalValueText, getOperator, getOptionCriteria, getOptionDataSourceAsString, getOptionFilterContext, getOptionTextMatchStyle, getOriginalValueMessage, getPageLeft, getPageRect, getPageTop, getPaletteDefaults, getPicker, getPickerIcon, getPickerIcon, getPickerIconHeight, getPickerIconName, getPickerIconPrompt, getPickerIconProperties, getPickerIconSrc, getPickerIconStyle, getPickerIconTabPosition, getPickerIconWidth, getPixelHeight, getPixelWidth, getPrintReadOnlyTextBoxStyle, getPrintTextBoxStyle, getPrintTitleStyle, getReadOnlyCanSelectText, getReadOnlyControlStyle, getReadOnlyDisplay, getReadOnlyHover, getReadOnlyTextBoxStyle, getReadOnlyWhen, getRect, getRedrawOnChange, getRejectInvalidValueOnChange, getRequired, getRequiredMessage, getRequiredRightTitlePrefix, getRequiredRightTitleSuffix, getRequiredTitlePrefix, getRequiredTitleSuffix, getRequiredWhen, getRightTitlePrefix, getRightTitleSuffix, getRowSpan, getSaveOnEnter, getScClassName, getSelectedRecord, getSelectOnClick, getSelectOnFocus, getShowClippedTitleOnHover, getShowClippedValueOnHover, getShowDeletions, getShowDisabled, getShowDisabledIconsOnFocus, getShowDisabledPickerIconOnFocus, getShowErrorIcon, getShowErrorIconInline, getShowErrorStyle, getShowErrorText, getShowFocused, getShowFocusedErrorState, getShowFocusedIcons, getShowFocusedPickerIcon, getShowHint, getShowIcons, getShowIconsOnFocus, getShowImageAsURL, getShowOldValueInHover, getShowOver, getShowOverIcons, getShowPending, getShowPickerIcon, getShowPickerIconOnFocus, getShowRTL, getShowTitle, getShowValueIconOnly, getStartRow, getStaticHeight, getStopOnError, getStoreDisplayValues, getSupportsCutPasteEvents, getSuppressValueIcon, getSynchronousValidation, getTabIndex, getTextAlign, getTextBoxStyle, getTextFormula, getTimeFormatter, getTitle, getTitleAlign, getTitleColSpan, getTitleOrientation, getTitlePrefix, getTitleStyle, getTitleSuffix, getTitleVAlign, getTooltip, getTop, getType, getUpdateControlOnOver, getUpdatePickerIconOnOver, getUpdateTextBoxOnOver, getUseAdvancedCriteria, getUseDisabledHintStyleForReadOnly, getUseLocalDisplayFieldValue, getValidateOnChange, getValidateOnExit, getValidOperators, getVAlign, getValue, getValueAsFloat, getValueAsInteger, getValueAsLong, getValueAsRecordList, getValueDeselectedCSSText, getValueFieldName, getValueIconHeight, getValueIconLeftPadding, getValueIconRightPadding, getValueIconSize, getValueIconWidth, getValueMap, getValueMapAsArray, getVisible, getVisibleHeight, getVisibleTitleWidth, getVisibleWhen, getVisibleWidth, getWarnOnEditorTypeConversion, getWarnOnEditorTypeConversionDefault, getWidth, getWidthAsString, getWrapHintText, getWrapStaticValue, getWrapTitle, handleWarnOnEditorTypeConversion, hasErrors, hide, hideIcon, invalidateDisplayValueCache, isAssignableFrom, isConfigOnly, isCreated, isCutEvent, isDisabled, isDrawn, isInGrid, isPasteEvent, isVisible, linkToInstanceUponCreate, mapDisplayToValue, mapValueToDisplay, mapValueToDisplay, mapValueToDisplay, redraw, redraw, removeIcon, selectedRecordChanged, setAccessKey, setAlign, setAllowExpressions, setAlwaysFetchMissingValues, setAlwaysShowControlBox, setApplyAlignToText, setApplyHeightToTextBox, setAriaRole, setAriaState, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setAutoComplete, setAutoCompleteKeywords, setBrowserInputType, setBrowserSpellCheck, setCanEdit, setCanEditOpaqueValues, setCanFocus, setCanHover, setCanSelectText, setCanTabToIcons, setCellHeight, setCellStyle, setChangeOnKeypress, setClipStaticValue, setClipTitle, setColSpan, setColSpan, setConfigOnly, setControlStyle, setCriteriaField, setCriterion, setCustomStateGetter, setDataPath, setDateFormatter, setDecimalPad, setDecimalPrecision, setDefaultIconSrc, setDefaultOperator, setDefaultProperties, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDisabled, setDisabledHover, setDisableIconsOnReadOnly, setDisplayFormat, setDisplayFormat, setEditorProperties, setEditorType, setEditorType, setEditorType, setEditorValueFormatter, setEditorValueParser, setEditPendingCSSText, setEditProxyConstructor, setEmptyDisplayValue, setEmptyValueIcon, setEndRow, setErrorFormatter, setErrorIconHeight, setErrorIconProperties, setErrorIconSrc, setErrorIconWidth, setErrorMessageWidth, setErrorOrientation, setErrors, setErrors, setEscapeHTML, setExportFormat, setExtraControlTableCSS, setExtraTextBoxCSS, setFetchMissingValues, setFilterLocally, setForeignDisplayField, setFormat, setFormula, setGlobalTabIndex, setHidden, setHint, setHintStyle, setHoverAlign, setHoverDelay, setHoverFocusKey, setHoverHeight, setHoverHeight, setHoverOpacity, setHoverPersist, setHoverStyle, setHoverVAlign, setHoverWidth, setHoverWidth, setIconBaseStyle, setIconDisabled, setIconHeight, setIconHSpace, setIconPrompt, setIcons, setIconShowOnFocus, setIconVAlign, setIconWidth, setID, setImageURLPrefix, setImageURLSuffix, setImplicitSave, setImplicitSaveOnBlur, setInitHandler, setInputFormat, setInputTransformer, setItemHoverFormatter, setItemTitleHoverFormatter, setItemValueHoverFormatter, setJavaScriptObject, setLeft, setLinearColSpan, setLinearColSpan, setLinearEndRow, setLinearEndRow, setLinearStartRow, setLinearStartRow, setLinearWidth, setLinearWidth, setLoadingDisplayValue, setLocateItemBy, setMinHintWidth, setMultipleValueSeparator, setName, setNullOriginalValueText, setNullProperty, setOperator, setOptionCriteria, setOptionDataSource, setOptionFilterContext, setOptionTextMatchStyle, setOriginalValueMessage, setPickerIconHeight, setPickerIconName, setPickerIconPrompt, setPickerIconProperties, setPickerIconSrc, setPickerIconStyle, setPickerIconWidth, setPrintReadOnlyTextBoxStyle, setPrintTextBoxStyle, setPrintTitleStyle, setProperty, setProperty, setProperty, setProperty, setProperty, setReadOnlyCanSelectText, setReadOnlyControlStyle, setReadOnlyDisplay, setReadOnlyHover, setReadOnlyTextBoxStyle, setReadOnlyWhen, setRedrawOnChange, setRejectInvalidValueOnChange, setRequired, setRequiredMessage, setRequiredRightTitlePrefix, setRequiredRightTitleSuffix, setRequiredTitlePrefix, setRequiredTitleSuffix, setRequiredWhen, setRightTitlePrefix, setRightTitleSuffix, setRowSpan, setSaveOnEnter, setScClassName, setSelectOnClick, setSelectOnFocus, setShowClippedTitleOnHover, setShowClippedValueOnHover, setShowDeletions, setShowDisabled, setShowDisabledIconsOnFocus, setShowDisabledPickerIconOnFocus, setShowErrorIcon, setShowErrorIconInline, setShowErrorStyle, setShowErrorText, setShowFocused, setShowFocusedErrorState, setShowFocusedIcons, setShowFocusedPickerIcon, setShowHint, setShowIcons, setShowIconsOnFocus, setShowIfCondition, setShowImageAsURL, setShowOldValueInHover, setShowOver, setShowOverIcons, setShowPending, setShowPickerIcon, setShowPickerIconOnFocus, setShowRTL, setShowTitle, setShowValueIconOnly, setStartRow, setStateCustomizer, setStaticHeight, setStopOnError, setStoreDisplayValues, setSupportsCutPasteEvents, setSuppressValueIcon, setSynchronousValidation, setTabIndex, setTextAlign, setTextBoxStyle, setTextFormula, setTimeFormatter, setTitle, setTitleAlign, setTitleColSpan, setTitleHoverFormatter, setTitleOrientation, setTitlePrefix, setTitleStyle, setTitleSuffix, setTitleVAlign, setTooltip, setTop, setType, setUpdateControlOnOver, setUpdatePickerIconOnOver, setUpdateTextBoxOnOver, setUseAdvancedCriteria, setUseDisabledHintStyleForReadOnly, setUseLocalDisplayFieldValue, setUseObjectFactoryForTypeFallback, setValidateOnChange, setValidateOnExit, setValidators, setValidOperators, setVAlign, setValue, setValue, setValue, setValue, setValue, setValue, setValueDeselectedCSSText, setValueFormatter, setValueHoverFormatter, setValueIconHeight, setValueIconLeftPadding, setValueIconMapper, setValueIconRightPadding, setValueIcons, setValueIconSize, setValueIconWidth, setValueMap, setValueMap, setVisible, setVisibleWhen, setWarnOnEditorTypeConversion, setWarnOnEditorTypeConversionDefault, setWidth, setWidth, setWrapHintText, setWrapStaticValue, setWrapTitle, shouldApplyHeightToTextBox, shouldFetchMissingValue, shouldSaveOnEnter, shouldStopKeyPressBubbling, show, showIcon, showPicker, stopHover, storeValue, updateState, validate, valueClipped`

  ### Methods inherited from class com.smartgwt.client.data.Field

  `getCanExport, getExportTitle, getPrimaryKey, getSortByField, setCanExport, setExportTitle, setPrimaryKey, setSortByField`

  ### Methods inherited from class com.smartgwt.client.core.RefDataClass

  `getRef, getRef, internalSetID`

  ### Methods inherited from class com.smartgwt.client.core.DataClass

  `applyFactoryProperties, doAddHandler, fireEvent, getAttributeAsDoubleArray, getAttributeAsElement, getAttributeAsIntArray, getAttributeAsLong, getAttributeAsMap, getAttributeAsObject, getAttributeAsRecord, getAttributeAsStringArray, getAttributes, getHandlerCount, isFactoryCreated, setAttribute, setAttribute, setAttribute, setAttributeAsJavaObject, setFactoryCreated`

  ### Methods inherited from class com.smartgwt.client.core.JsObject

  `equals, getJsObj, hashCode, setJsObj`

  ### Methods inherited from class java.lang.Object

  `clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

  ### Methods inherited from interface com.google.gwt.event.shared.HasHandlers

  `fireEvent`

- ## Constructor Details

  - ### MultiComboBoxItem

    public MultiComboBoxItem()

  - ### MultiComboBoxItem

    public MultiComboBoxItem(JavaScriptObject jsObj)

  - ### MultiComboBoxItem

    public MultiComboBoxItem(String name)

  - ### MultiComboBoxItem

    public MultiComboBoxItem(String name, String title)

- ## Method Details

  - ### getOrCreateRef

    public static MultiComboBoxItem getOrCreateRef(JavaScriptObject jsObj)

  - ### changeAutoChildDefaults

    public static void changeAutoChildDefaults(String autoChildName, Canvas defaults)
    Changes the defaults for Canvas AutoChildren named `autoChildName`.
    Parameters:
      `autoChildName` - name of an AutoChild to customize the defaults for.
      `defaults` - Canvas defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see `SGWTProperties`.
    See Also:
      - `AutoChildUsage`

  - ### changeAutoChildDefaults

    public static void changeAutoChildDefaults(String autoChildName, FormItem defaults)
    Changes the defaults for FormItem AutoChildren named `autoChildName`.
    Parameters:
      `autoChildName` - name of an AutoChild to customize the defaults for.
      `defaults` - FormItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see `SGWTProperties`.
    See Also:
      - `AutoChildUsage`

  - ### changePickerIconDefaults

    public static void changePickerIconDefaults(FormItemIcon defaults)

  - ### setAddUnknownValues

    public MultiComboBoxItem setAddUnknownValues(Boolean addUnknownValues)
    Similar to `ComboBoxItem.addUnknownValues`, controls whether additional values can be added to the ComboBox or whether the user must choose from the available values in the picklist only.

    If this setting is changed after the MultiComboBoxItem has been created, the current value of the item is reset to null and all buttons for non-default values (values not in the `FormItem.defaultValue` array) are removed.

    Parameters:
      `addUnknownValues` - New addUnknownValues value. Default value is false
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getAddUnknownValues

    public Boolean getAddUnknownValues()
    Similar to `ComboBoxItem.addUnknownValues`, controls whether additional values can be added to the ComboBox or whether the user must choose from the available values in the picklist only.

    If this setting is changed after the MultiComboBoxItem has been created, the current value of the item is reset to null and all buttons for non-default values (values not in the `FormItem.defaultValue` array) are removed.

    Returns:
      Current addUnknownValues value. Default value is false

  - ### setAlwaysExitOnTab

    public MultiComboBoxItem setAlwaysExitOnTab(Boolean alwaysExitOnTab)
    If true, hitting tab always exits the field, and will also add a value to the list of selected values if there is match (and depending on the setting for `addUnknownValues`).

    If false, if the user has typed in a value and hits tab, focus remains in the field. If there is a match or if `addUnknownValues` is true, a value will be added. Otherwise, the input cursor remains at the end of the entered value.

    Parameters:
      `alwaysExitOnTab` - New alwaysExitOnTab value. Default value is true
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getAlwaysExitOnTab

    public Boolean getAlwaysExitOnTab()
    If true, hitting tab always exits the field, and will also add a value to the list of selected values if there is match (and depending on the setting for `addUnknownValues`).

    If false, if the user has typed in a value and hits tab, focus remains in the field. If there is a match or if `addUnknownValues` is true, a value will be added. Otherwise, the input cursor remains at the end of the entered value.

    Returns:
      Current alwaysExitOnTab value. Default value is true

  - ### setAutoFetchData

    public MultiComboBoxItem setAutoFetchData(Boolean autoFetchData)
    Should the MultiComboBoxItem fetch data from the `data source` immediately or wait until the user first opens the pickList.
    Parameters:
      `autoFetchData` - New autoFetchData value. Default value is false
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `ComboBoxItem.setAutoFetchData(java.lang.Boolean)`

  - ### getAutoFetchData

    public Boolean getAutoFetchData()
    Should the MultiComboBoxItem fetch data from the `data source` immediately or wait until the user first opens the pickList.
    Returns:
      Current autoFetchData value. Default value is false
    See Also:
      - `ComboBoxItem.getAutoFetchData()`

  - ### setAutoFitButtons

    public MultiComboBoxItem setAutoFitButtons(Boolean autoFitButtons)
    Specifies whether to autofit the buttons in the MultiComboBoxItem. The default value is true if `layoutStyle` is "flow", but false for a layoutStyle of "vertical" or "verticalReverse". If the `layoutStyle` is "horizontal" or "horizontalReverse" then the buttons will autofit regardless of the setting of this property.
    If this method is called after the component has been drawn/initialized: Sets the `autoFitButtons` property.
    Parameters:
      `autoFitButtons` - whether to autofit the buttons. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getAutoFitButtons

    public Boolean getAutoFitButtons()
    Specifies whether to autofit the buttons in the MultiComboBoxItem. The default value is true if `layoutStyle` is "flow", but false for a layoutStyle of "vertical" or "verticalReverse". If the `layoutStyle` is "horizontal" or "horizontalReverse" then the buttons will autofit regardless of the setting of this property.
    Returns:
      Current autoFitButtons value. Default value is null

  - ### setAutoOpenTree

    public MultiComboBoxItem setAutoOpenTree(String autoOpenTree)
    When this item is showing a tree-based picker, which nodes should be opened automatically. Options are:
    - "none" - no nodes are opened automatically
    - "root" - opens the top-level node - in databound tree-pickers, this node is always hidden
    - "all" - when `loading data on demand`, opens the top-level node and all of it's direct descendants - otherwise, opens all loaded nodes
    Parameters:
      `autoOpenTree` - New autoOpenTree value. Default value is "none"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getAutoOpenTree

    public String getAutoOpenTree()
    When this item is showing a tree-based picker, which nodes should be opened automatically. Options are:
    - "none" - no nodes are opened automatically
    - "root" - opens the top-level node - in databound tree-pickers, this node is always hidden
    - "all" - when `loading data on demand`, opens the top-level node and all of it's direct descendants - otherwise, opens all loaded nodes
    Returns:
      Current autoOpenTree value. Default value is "none"

  - ### getButton

    public IButton getButton()
    Note : This API is non-functional (always returns null) and exists only to make you aware that this MultiAutoChild exists. See `Using AutoChildren` for details.

    An `com.smartgwt.client.types.AutoChild` attribute used to create the buttons in the MultiComboBoxItem.

    Returns:
      null

  - ### getComboBox

    public ComboBoxItem getComboBox()
    An `com.smartgwt.client.types.AutoChild` attribute to create the combo box in a MultiComboBoxItem.

    This component is an AutoChild named "comboBox". For an overview of how to use and configure AutoChildren, see `Using AutoChildren`.

    Returns:
      Current comboBox value. Default value is null

  - ### setComboBoxWidth

    public MultiComboBoxItem setComboBoxWidth(int comboBoxWidth)
    Specifies the size of the combo box field.

    Note that this attribute only has an effect in "flow", "horizontal", and "horizontalReverse" `modes`. In the other modes, the combo box is as wide as the overall MultiComboBoxItem.

    Parameters:
      `comboBoxWidth` - New comboBoxWidth value. Default value is 130
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getComboBoxWidth

    public int getComboBoxWidth()
    Specifies the size of the combo box field.

    Note that this attribute only has an effect in "flow", "horizontal", and "horizontalReverse" `modes`. In the other modes, the combo box is as wide as the overall MultiComboBoxItem.

    Returns:
      Current comboBoxWidth value. Default value is 130

  - ### getComboForm

    public DynamicForm getComboForm()
    The `DynamicForm` holding the `comboBox`.

    This component is an AutoChild named "comboForm". For an overview of how to use and configure AutoChildren, see `Using AutoChildren`.

    Returns:
      Current comboForm value. Default value is null

  - ### setDataSetType

    public MultiComboBoxItem setDataSetType(String dataSetType)
    Whether to show the picker as a flat list, or a collapsible tree.

    The default value, "list", will use an instance of the pickListConstructor as the picker - "tree" will show an instance of pickTreeConstructor.

    Parameters:
      `dataSetType` - New dataSetType value. Default value is "list"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getDataSetType

    public String getDataSetType()
    Whether to show the picker as a flat list, or a collapsible tree.

    The default value, "list", will use an instance of the pickListConstructor as the picker - "tree" will show an instance of pickTreeConstructor.

    Returns:
      Current dataSetType value. Default value is "list"

  - ### setDeselectedButtonStyle

    public MultiComboBoxItem setDeselectedButtonStyle(String deselectedButtonStyle)
    When `showDeletions` is `true`, the `Button.baseStyle` used on `buttons` for values that have been deleted (also called "deselected buttons").

    If unset, then the `baseStyle` of deselected buttons is not changed.

    NOTE: Deselected buttons are also disabled, so styling should be provided for the `deselectedButtonStyle` + "Disabled" style name.

    Parameters:
      `deselectedButtonStyle` - New deselectedButtonStyle value. Default value is "buttonDeselected"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `setPendingButtonStyle(java.lang.String)`
      - `CSSStyleName`

  - ### getDeselectedButtonStyle

    public String getDeselectedButtonStyle()
    When `showDeletions` is `true`, the `Button.baseStyle` used on `buttons` for values that have been deleted (also called "deselected buttons").

    If unset, then the `baseStyle` of deselected buttons is not changed.

    NOTE: Deselected buttons are also disabled, so styling should be provided for the `deselectedButtonStyle` + "Disabled" style name.

    Returns:
      Current deselectedButtonStyle value. Default value is "buttonDeselected"
    See Also:
      - `getPendingButtonStyle()`
      - `CSSStyleName`

  - ### setDisplayField

    public MultiComboBoxItem setDisplayField(String displayField)
    The `displayField` of the combo box.

    Note : This is an advanced setting

    Overrides:
      `setDisplayField` in class `FormItem`
    Parameters:
      `displayField` - New displayField value. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `ComboBoxItem.setDisplayField(java.lang.String)`

  - ### getDisplayField

    public String getDisplayField()
    The `displayField` of the combo box.
    Overrides:
      `getDisplayField` in class `FormItem`
    Returns:
      Current displayField value. Default value is null
    See Also:
      - `ComboBoxItem.getDisplayField()`

  - ### setLayoutStyle

    public MultiComboBoxItem setLayoutStyle(MultiComboBoxLayoutStyle layoutStyle)
    Specifies the layout style of the combo box and the buttons in the MultiComboBoxItem. Available values are "flow" (the default), "horizontal", "horizontalReverse", "vertical", and "verticalReverse".
    - "flow": The buttons appear to the left of the combo box. When there is no more room, the combo box and/or buttons flow onto a new line. The buttons autoFit by default.
    - "horizontal": The combo box appears on right and buttons are horizontally stacked directly left of it. The buttons must autofit.
    - "horizontalReverse": Like "horizontal" but the combo box appears on the left. The buttons must autofit.
    - "vertical": The combo box appears on top and buttons are stacked beneath it. Buttons do not autofit by default.
    - "verticalReverse": Like "vertical" but the combo box appears at bottom. The buttons do not autofit by default.
    Parameters:
      `layoutStyle` - the new layout style. Default value is "flow"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getLayoutStyle

    public MultiComboBoxLayoutStyle getLayoutStyle()
    Specifies the layout style of the combo box and the buttons in the MultiComboBoxItem. Available values are "flow" (the default), "horizontal", "horizontalReverse", "vertical", and "verticalReverse".
    - "flow": The buttons appear to the left of the combo box. When there is no more room, the combo box and/or buttons flow onto a new line. The buttons autoFit by default.
    - "horizontal": The combo box appears on right and buttons are horizontally stacked directly left of it. The buttons must autofit.
    - "horizontalReverse": Like "horizontal" but the combo box appears on the left. The buttons must autofit.
    - "vertical": The combo box appears on top and buttons are stacked beneath it. Buttons do not autofit by default.
    - "verticalReverse": Like "vertical" but the combo box appears at bottom. The buttons do not autofit by default.
    Returns:
      Current layoutStyle value. Default value is "flow"

  - ### setOptionOperationId

    public MultiComboBoxItem setOptionOperationId(String optionOperationId)
    If this item has a specified `optionDataSource`, this attribute may be set to specify an explicit `DSRequest.operationId` when performing a fetch against the option dataSource to pick up display value mapping.
    Overrides:
      `setOptionOperationId` in class `FormItem`
    Parameters:
      `optionOperationId` - New optionOperationId value. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `DataBinding`

  - ### getOptionOperationId

    public String getOptionOperationId()
    If this item has a specified `optionDataSource`, this attribute may be set to specify an explicit `DSRequest.operationId` when performing a fetch against the option dataSource to pick up display value mapping.
    Overrides:
      `getOptionOperationId` in class `FormItem`
    Returns:
      Current optionOperationId value. Default value is null
    See Also:
      - `DataBinding`

  - ### setPendingButtonStyle

    public MultiComboBoxItem setPendingButtonStyle(String pendingButtonStyle)
    When `showPending` is `true`, the `Button.baseStyle` used on `buttons` that are in the "Pending" visual state.

    If unset, then the `baseStyle` of pending buttons is not changed.

    Parameters:
      `pendingButtonStyle` - New pendingButtonStyle value. Default value is "buttonPending"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `setDeselectedButtonStyle(java.lang.String)`
      - `CSSStyleName`

  - ### getPendingButtonStyle

    public String getPendingButtonStyle()
    When `showPending` is `true`, the `Button.baseStyle` used on `buttons` that are in the "Pending" visual state.

    If unset, then the `baseStyle` of pending buttons is not changed.

    Returns:
      Current pendingButtonStyle value. Default value is "buttonPending"
    See Also:
      - `getDeselectedButtonStyle()`
      - `CSSStyleName`

  - ### setPickListConstructor

    public MultiComboBoxItem setPickListConstructor(String pickListConstructor)
    The Class to use when creating a picker of type "list" for a FormItem. Must be a subclass of the builtin default, `PickListMenu`.
    Parameters:
      `pickListConstructor` - New pickListConstructor value. Default value is "PickListMenu"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `SCClassName`
      - `PickList overview and related methods`

  - ### getPickListConstructor

    public String getPickListConstructor()
    The Class to use when creating a picker of type "list" for a FormItem. Must be a subclass of the builtin default, `PickListMenu`.
    Returns:
      Current pickListConstructor value. Default value is "PickListMenu"
    See Also:
      - `SCClassName`
      - `PickList overview and related methods`

  - ### setPickTreeConstructor

    public MultiComboBoxItem setPickTreeConstructor(String pickTreeConstructor)
    The Class to use when creating a picker of type "tree" for a FormItem. Must be a subclass of the builtin default, PickTreeMenu.
    Parameters:
      `pickTreeConstructor` - New pickTreeConstructor value. Default value is "PickTreeMenu"
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `SCClassName`

  - ### getPickTreeConstructor

    public String getPickTreeConstructor()
    The Class to use when creating a picker of type "tree" for a FormItem. Must be a subclass of the builtin default, PickTreeMenu.
    Returns:
      Current pickTreeConstructor value. Default value is "PickTreeMenu"
    See Also:
      - `SCClassName`

  - ### setRootNodeId

    public MultiComboBoxItem setRootNodeId(String rootNodeId)
    When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
    Parameters:
      `rootNodeId` - New rootNodeId value. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getRootNodeId

    public String getRootNodeId()
    When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
    Returns:
      Current rootNodeId value. Default value is null

  - ### setRootNodeId

    public MultiComboBoxItem setRootNodeId(Integer rootNodeId)
    When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
    Parameters:
      `rootNodeId` - New rootNodeId value. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getRootNodeIdAsInt

    public Integer getRootNodeIdAsInt()
    When this item is showing a tree-based picker, this is the `id` of the record to use as the `root` node.
    Returns:
      Current rootNodeId value. Default value is null

  - ### setShouldSaveValue

    public MultiComboBoxItem setShouldSaveValue(Boolean shouldSaveValue)
    Should this item's value be saved in the form's values and hence returned from `form.getValues()`?

    `shouldSaveValue:false` is used to mark formItems which do not correspond to the underlying data model and should not save a value into the form's `values`. Example includes visual separators, password re-type fields, or checkboxes used to show/hide other form items.

    A `shouldSaveValue:false` item should be given a value either via `FormItem.defaultValue` or by calling `form.setValue(item, value)` or `formItem.setValue(value)`. Providing a value via `form.values` or `form.setValues()` will automatically switch the item to `shouldSaveValue:true`.

    Note that

    - if an item is shouldSaveValue true, but has no name, a warning is logged, and shouldSaveValue will be set to false.
    Overrides:
      `setShouldSaveValue` in class `CanvasItem`
    Parameters:
      `shouldSaveValue` - New shouldSaveValue value. Default value is true
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getShouldSaveValue

    public Boolean getShouldSaveValue()
    Should this item's value be saved in the form's values and hence returned from `form.getValues()`?

    `shouldSaveValue:false` is used to mark formItems which do not correspond to the underlying data model and should not save a value into the form's `values`. Example includes visual separators, password re-type fields, or checkboxes used to show/hide other form items.

    A `shouldSaveValue:false` item should be given a value either via `FormItem.defaultValue` or by calling `form.setValue(item, value)` or `formItem.setValue(value)`. Providing a value via `form.values` or `form.setValues()` will automatically switch the item to `shouldSaveValue:true`.

    Note that

    - if an item is shouldSaveValue true, but has no name, a warning is logged, and shouldSaveValue will be set to false.
    Overrides:
      `getShouldSaveValue` in class `CanvasItem`
    Returns:
      Current shouldSaveValue value. Default value is true

  - ### setUseInsertionOrder

    public MultiComboBoxItem setUseInsertionOrder(Boolean useInsertionOrder)
    Specifies whether to arrange the buttons of the MultiComboBoxItem in the order that they were selected (the default), or to sort the buttons by `displayField`.
    Parameters:
      `useInsertionOrder` - New useInsertionOrder value. Default value is true
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls

  - ### getUseInsertionOrder

    public Boolean getUseInsertionOrder()
    Specifies whether to arrange the buttons of the MultiComboBoxItem in the order that they were selected (the default), or to sort the buttons by `displayField`.
    Returns:
      Current useInsertionOrder value. Default value is true

  - ### setValueField

    public MultiComboBoxItem setValueField(String valueField)
    The `valueField` of the combo box.
    Overrides:
      `setValueField` in class `FormItem`
    Parameters:
      `valueField` - New valueField value. Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `ComboBoxItem.setValueField(java.lang.String)`

  - ### getValueField

    public String getValueField()
    The `valueField` of the combo box.
    Overrides:
      `getValueField` in class `FormItem`
    Returns:
      Current valueField value. Default value is null
    See Also:
      - `ComboBoxItem.getValueField()`

  - ### getValueLayout

    public Layout getValueLayout()
    Note : This API is non-functional (always returns null) and exists only to make you aware that this MultiAutoChild exists. See `Using AutoChildren` for details.

    The layout used to arrange the `comboForm` and the buttons representing the values of the MultiComboBoxItem. Note that the constructor cannot be changed (setting a valueLayoutConstructor has no effect) because the exact layout class used depends on the current `layout style`.

    Returns:
      null

  - ### pendingStatusChanged

    public boolean pendingStatusChanged(DynamicForm form, FormItem item, boolean pendingStatus, Object newValue, Object value)
    Notification method called when `showPending` is enabled and this `MultiComboBoxItem` should either clear or show its pending visual state.

    The default behavior is that the `titleStyle` and `cellStyle` are updated to include/exclude the "Pending" suffix. In addition, when displayed in the pending state and a `pendingButtonStyle` is set, then:

    - If `useInsertionOrder` is `false`, buttons for any new values will have their `baseStyle` set to `pendingButtonStyle`; otherwise
    - (`useInsertionOrder` is `true`) buttons for values will have their `baseStyle` set to `pendingButtonStyle` if either the value is new or it is in a different place within the value array.
    Returning `false` will cancel this default behavior.
    Parameters:
      `form` - the managing `DynamicForm` instance.
      `item` - the form item itself (also available as "this").
      `pendingStatus` - `true` if the item should show its pending visual state; `false` otherwise.
      `newValue` - the current form item value.
      `value` - the value that would be restored by a call to `DynamicForm.resetValues()`.
    Returns:
      `false` to cancel the default behavior.

  - ### showValue

    public void showValue(Object displayValue, Object dataValue, DynamicForm form, CanvasItem item)
    This method will be called whenever this FormItem's value is being set via a programmatic call to e.g: `DynamicForm.setValues()` or `FormItem.setValue()` and may be overridden by CanvasItems intended to support displaying data values to update the embedded Canvas to reflect the value passed in.

    The value of a MultiComboBoxItem to the form is an array of valueField values corresponding to the selected combo box options.

    Parameters:
      `displayValue` - new display value for the item. This is the value after applying any custom formatter or valueMap
      `dataValue` - underlying data value for the item
      `form` - the dynamicForm in which this item is contained
      `item` - the live form item instance

  - ### setDefaultProperties

    public static void setDefaultProperties(MultiComboBoxItem multiComboBoxItemProperties)
    Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties of the class instance passed to this function. This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class. Can also be used for skinning / styling purposes.

    Note: This method is intended for setting default attributes only and will affect all instances of the underlying class (including those automatically generated in JavaScript). This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead. Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route.

    Parameters:
      `multiComboBoxItemProperties` - properties that should be used as new defaults when instances of this class are created
    See Also:
      - `SGWTProperties`

  - ### getButtonDefaults

    public IButton getButtonDefaults()
    Default properties to be used in creating each `IButton`.
    Returns:
      IButton

  - ### setButtonProperties

    public void setButtonProperties(IButton buttonProperties)
    Properties to be used in creating each option button.

    Note : This is an advanced setting

    Parameters:
      `buttonProperties` - buttonProperties

  - ### getButtonProperties

    public IButton getButtonProperties()
    Properties to be used in creating each option button.
    Returns:
      IButton

  - ### getComboBoxDefaults

    public ComboBoxItem getComboBoxDefaults()
    Default properties for the `ComboBoxItem` in a MultiComboBoxItem.
    Returns:
      ComboBoxItem

  - ### setComboBoxProperties

    public void setComboBoxProperties(ComboBoxItem comboBoxProperties)
    Properties to be used in creating a `ComboBoxItem`.

    Note : This is an advanced setting

    Parameters:
      `comboBoxProperties` - comboBoxProperties Default value is null

  - ### getComboBoxProperties

    public ComboBoxItem getComboBoxProperties()
    Properties to be used in creating a `ComboBoxItem`.
    Returns:
      ComboBoxItem

  - ### setOptionDataSource

    public MultiComboBoxItem setOptionDataSource(DataSource optionDataSource)
    The `optionDataSource` of the combo box.
    Overrides:
      `setOptionDataSource` in class `FormItem`
    Parameters:
      `optionDataSource` - optionDataSource Default value is null
    Returns:
      `MultiComboBoxItem` instance, for chaining setter calls
    See Also:
      - `ComboBoxItem.setOptionDataSource(com.smartgwt.client.data.DataSource)`

  - ### getOptionDataSource

    public DataSource getOptionDataSource()
    The `optionDataSource` of the combo box.
    Overrides:
      `getOptionDataSource` in class `FormItem`
    Returns:
      DataSource
    See Also:
      - `ComboBoxItem.getOptionDataSource()`

  - ### getValues

    public final String[] getValues()

  - ### setValues

    public void setValues(Object... values)