com.smartgwt.client.widgets.form.fields

Class PickTreeItem

java.lang.Object

com.smartgwt.client.core.JsObject

com.smartgwt.client.core.DataClass

com.smartgwt.client.core.RefDataClass

com.smartgwt.client.widgets.form.fields.FormItem

com.smartgwt.client.widgets.form.fields.CanvasItem

com.smartgwt.client.widgets.form.fields.PickTreeItem

All Implemented Interfaces:

com.google.gwt.event.shared.HasHandlers, HasBlurHandlers, HasCanEditChangedHandlers, HasChangedHandlers, HasChangeHandlers, HasClickHandlers, HasDoubleClickHandlers, HasEditorEnterHandlers, HasEditorExitHandlers, HasFocusHandlers, HasIconClickHandlers, HasIconKeyPressHandlers, HasItemHoverHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasKeyUpHandlers, HasPickerIconClickHandlers, HasShowValueHandlers, HasTitleClickHandlers, HasTitleDoubleClickHandlers, HasTitleHoverHandlers, HasValueHoverHandlers

Direct Known Subclasses:

IPickTreeItem

public class PickTreeItem
extends CanvasItem

FormItem that allows picking a value from a hierarchical data model.

Field Summary

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

id

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

jsObj

Constructor Summary

Constructors

Constructor and Description
PickTreeItem()
PickTreeItem(com.google.gwt.core.client.JavaScriptObject jsObj)
PickTreeItem(java.lang.String name)
PickTreeItem(java.lang.String name, java.lang.String title)

Method Summary

Methods

Modifier and Type	Method and Description
static void	changeAutoChildDefaults(java.lang.String autoChildName, Canvas defaults) Changes the defaults for Canvas AutoChildren named autoChildName.
static void	changeAutoChildDefaults(java.lang.String autoChildName, FormItem defaults) Changes the defaults for FormItem AutoChildren named autoChildName.
static void	changePickerIconDefaults(FormItemIcon defaults)
void	fetchData() Only applies to databound items (see optionDataSource). Performs a fetch type operation on this item's DataSource to retrieve/refresh the tree of data displayed as rows in this items menu.
java.lang.Boolean	getCanSelectParentItems() If true, clicking or pressing Enter on a menu item that has a submenu will select that item (with standard behavior of hiding the menus, calling click handlers, etc) instead of showing the submenu.
DataSource	getDataSource() The DataSource that this component should bind to for default fields and for performing DSRequest.
java.lang.String	getDisplayField() Specifies an alternative field from which display values should be retrieved for this item. If this item is not databound (dataSource is unset), this is implemented by picking up the value of the specified field from the valueTree. Otherwise this item will attempt to map its underlying value to a display value by retrieving a record from the dataSource where the valueField matches this item's value, and displaying the displayField value from that record.
java.lang.String	getEmptyDisplayValue() Text to display when this form item has a null or undefined value.
java.lang.String	getEmptyMenuMessage() This message will be displayed as a single, disabled option in any empty menu/submenu created from this item's data tree.
java.lang.Boolean	getLoadDataOnDemand() If this is a databound item, should the load our set of possible options be loaded on demand (as submenus are displayed), or upfront?
DataSource	getOptionDataSource() If set, this FormItem will map stored values to display values as though a ValueMap were specified, by fetching records from the specified optionDataSource and extracting the valueField and displayField in loaded records, to derive one valueMap entry per record loaded from the optionDataSource.
static PickTreeItem	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
ReadOnlyDisplayAppearance	getReadOnlyDisplay() If canEdit is set to false, how should this item be displayed to the user?
java.lang.String	getValueField() Which field in the tree-data should be returned as this item's value? If unspecified, the path will be used
void	setCanSelectParentItems(java.lang.Boolean canSelectParentItems) If true, clicking or pressing Enter on a menu item that has a submenu will select that item (with standard behavior of hiding the menus, calling click handlers, etc) instead of showing the submenu.
void	setDataSource(DataSource dataSource) If specified, the tree of possible options will be derived from the dataSource as a ResultTree, rather than using this.valueTree.
static void	setDefaultProperties(PickTreeItem pickTreeItemProperties) Class level method to set the default properties of this class.
void	setDisplayField(java.lang.String displayField) Specifies an alternative field from which display values should be retrieved for this item. If this item is not databound (dataSource is unset), this is implemented by picking up the value of the specified field from the valueTree. Otherwise this item will attempt to map its underlying value to a display value by retrieving a record from the dataSource where the valueField matches this item's value, and displaying the displayField value from that record.
void	setEmptyDisplayValue(java.lang.String emptyDisplayValue) Text to display when this form item has a null or undefined value.
void	setEmptyMenuMessage(java.lang.String emptyMenuMessage) This message will be displayed as a single, disabled option in any empty menu/submenu created from this item's data tree.
void	setJavaScriptObject(com.google.gwt.core.client.JavaScriptObject jsObj)
void	setLoadDataOnDemand(java.lang.Boolean loadDataOnDemand) If this is a databound item, should the load our set of possible options be loaded on demand (as submenus are displayed), or upfront?
void	setOptionDataSource(DataSource optionDataSource) If set, this FormItem will map stored values to display values as though a ValueMap were specified, by fetching records from the specified optionDataSource and extracting the valueField and displayField in loaded records, to derive one valueMap entry per record loaded from the optionDataSource.
void	setReadOnlyDisplay(ReadOnlyDisplayAppearance readOnlyDisplay) If canEdit is set to false, how should this item be displayed to the user?
void	setValueField(java.lang.String valueField) Which field in the tree-data should be returned as this item's value? If unspecified, the path will be used
void	setValueTree(Tree valueTree) A Tree of options from which the user can select.

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

addCanEditChangedHandler, addShowValueHandler, createCanvas, getApplyPromptToCanvas, getAutoDestroy, getCanvas, getEditCriteriaInInnerForm, getHeight, getMultiple, getOverflow, getPrompt, getShouldSaveValue, hasAdvancedCriteria, readOnlyDisplayChanged, setApplyPromptToCanvas, setAutoDestroy, setCanEditCriterionPredicate, setCanvas, setCriterionGetter, setCriterionSetter, setDefaultProperties, setEditCriteriaInInnerForm, setMultiple, setOverflow, setPrompt, setShouldSaveValue, setupCanvasConstructor, storeValue, storeValue, storeValue

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

_getValue, addBlurHandler, addChangedHandler, addChangeHandler, addClickHandler, addDoubleClickHandler, addEditorEnterHandler, addEditorExitHandler, addFocusHandler, addIconClickHandler, addIconKeyPressHandler, addItemHoverHandler, addKeyDownHandler, addKeyPressHandler, addKeyUpHandler, addPickerIconClickHandler, addTitleClickHandler, addTitleDoubleClickHandler, addTitleHoverHandler, addValueHoverHandler, asSGWTComponent, blurItem, canEditCriterion, clearValue, disable, enable, focusInItem, getAccessKey, getAlign, getAllowExpressions, getAlwaysFetchMissingValues, getApplyHeightToTextBox, getAriaRole, getAttribute, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDouble, getAttributeAsFloat, getAttributeAsInt, getAttributeAsJavaScriptObject, getAttributeAsString, getBrowserSpellCheck, getCanEdit, getCanFocus, getCanvasAutoChild, getCellHeight, getCellStyle, getClassName, getClipStaticValue, getClipTitle, getConfig, getContainerWidget, getCriteriaField, getCriterion, getCriterion, getDataPath, getDateFormatter, getDecimalPad, getDecimalPrecision, getDefaultIconSrc, getDisabled, getDisableIconsOnReadOnly, getDisplayFieldName, getDisplayValue, getDisplayValue, getEditorTypeConfig, getEditPendingCSSText, getEmptyValueIcon, getEndRow, getErrorIconHeight, getErrorIconSrc, getErrorIconWidth, getErrorMessageWidth, getFetchMissingValues, getFieldName, getFilterLocally, getForm, getFormItemAutoChild, getFullDataPath, getGlobalTabIndex, getHint, getHintStyle, getHoverAlign, getHoverDelay, getHoverHeight, getHoverOpacity, getHoverStyle, getHoverVAlign, getHoverWidth, getIcon, getIconHeight, getIconHSpace, getIconPageRect, getIconPrompt, getIconRect, getIconVAlign, getIconWidth, getImageURLPrefix, getImageURLSuffix, getImplicitSave, getImplicitSaveOnBlur, getInputFormat, getLeft, getLocateItemBy, getMultipleValueSeparator, getName, getOperator, getOptionCriteria, getOptionFilterContext, getOptionOperationId, getPageLeft, getPageRect, getPageTop, getPicker, getPickerIconHeight, getPickerIconName, getPickerIconPrompt, getPickerIconProperties, getPickerIconSrc, getPickerIconStyle, getPickerIconWidth, getPrintTextBoxStyle, getPrintTitleStyle, getReadOnlyTextBoxStyle, getRect, getRedrawOnChange, getRejectInvalidValueOnChange, getRequired, getRequiredMessage, getRowSpan, getSaveOnEnter, getSelectedRecord, getSelectOnClick, getSelectOnFocus, getShowClippedTitleOnHover, getShowClippedValueOnHover, getShowDisabled, getShowErrorIcon, getShowErrorStyle, getShowErrorText, getShowFocused, getShowFocusedErrorState, getShowFocusedIcons, getShowFocusedPickerIcon, getShowHint, getShowIcons, getShowOverIcons, getShowPickerIcon, getShowRTL, getShowTitle, getShowValueIconOnly, getStartRow, getStopOnError, getSuppressValueIcon, getSynchronousValidation, getTabIndex, getTextAlign, getTextBoxStyle, getTimeFormatter, getTitle, getTitleAlign, getTitleColSpan, getTitleOrientation, getTitleStyle, getTitleVAlign, getTooltip, getTop, getType, getValidateOnChange, getValidateOnExit, getValidOperators, getVAlign, getValue, getValueAsRecordList, getValueFieldName, getValueIconHeight, getValueIconLeftPadding, getValueIconRightPadding, getValueIconSize, getValueIconWidth, getVisible, getVisibleHeight, getVisibleWidth, getWidth, getWrapTitle, hide, hideIcon, invalidateDisplayValueCache, isCreated, isDisabled, isDrawn, isVisible, redraw, setAccessKey, setAlign, setAllowExpressions, setAlwaysFetchMissingValues, setApplyHeightToTextBox, setAriaRole, setAriaState, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setBrowserSpellCheck, setCanEdit, setCanFocus, setCellHeight, setCellStyle, setClipStaticValue, setClipTitle, setColSpan, setColSpan, setCriteriaField, setCriterion, setDataPath, setDateFormatter, setDecimalPad, setDecimalPrecision, setDefaultIconSrc, setDefaultProperties, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDefaultValue, setDisabled, setDisableIconsOnReadOnly, setDisplayFormat, setDisplayFormat, setEditorProperties, setEditorType, setEditorType, setEditorType, setEditorValueFormatter, setEditorValueParser, setEditPendingCSSText, setEmptyValueIcon, setEndRow, setErrorFormatter, setErrorIconHeight, setErrorIconSrc, setErrorIconWidth, setErrorMessageWidth, setErrorOrientation, setFetchMissingValues, setFilterLocally, setGlobalTabIndex, setHeight, setHeight, setHint, setHintStyle, setHoverAlign, setHoverDelay, setHoverHeight, setHoverOpacity, setHoverStyle, setHoverVAlign, setHoverWidth, setIconHeight, setIconHSpace, setIconPrompt, setIcons, setIconVAlign, setIconWidth, setImageURLPrefix, setImageURLSuffix, setImplicitSave, setImplicitSaveOnBlur, setInitHandler, setInputFormat, setInputTransformer, setItemHoverFormatter, setItemTitleHoverFormatter, setItemValueHoverFormatter, setLeft, setLocateItemBy, setMultipleValueSeparator, setName, setOperator, setOptionCriteria, setOptionFilterContext, setOptionOperationId, setPickerIconHeight, setPickerIconName, setPickerIconPrompt, setPickerIconProperties, setPickerIconSrc, setPickerIconStyle, setPickerIconWidth, setPrintTextBoxStyle, setPrintTitleStyle, setProperty, setProperty, setProperty, setProperty, setProperty, setReadOnlyTextBoxStyle, setRedrawOnChange, setRejectInvalidValueOnChange, setRequired, setRequiredMessage, setRowSpan, setSaveOnEnter, setSelectOnClick, setSelectOnFocus, setShowClippedTitleOnHover, setShowClippedValueOnHover, setShowDisabled, setShowErrorIcon, setShowErrorStyle, setShowErrorText, setShowFocused, setShowFocusedErrorState, setShowFocusedIcons, setShowFocusedPickerIcon, setShowHint, setShowIcons, setShowIfCondition, setShowOverIcons, setShowPickerIcon, setShowRTL, setShowTitle, setShowValueIconOnly, setStartRow, setStopOnError, setSuppressValueIcon, setSynchronousValidation, setTabIndex, setTextAlign, setTextBoxStyle, setTimeFormatter, setTitle, setTitleAlign, setTitleColSpan, setTitleHoverFormatter, setTitleOrientation, setTitleStyle, setTitleVAlign, setTooltip, setTop, setType, setValidateOnChange, setValidateOnExit, setValidators, setValidOperators, setVAlign, setValue, setValue, setValue, setValue, setValue, setValue, setValueFormatter, setValueHoverFormatter, setValueIconHeight, setValueIconLeftPadding, setValueIconMapper, setValueIconRightPadding, setValueIcons, setValueIconSize, setValueIconWidth, setValueMap, setValueMap, setVisible, setWidth, setWidth, setWrapTitle, shouldApplyHeightToTextBox, shouldFetchMissingValue, shouldSaveOnEnter, show, showIcon, showPicker, stopHover, updateState, validate, valueClipped

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

getRef, getRef, internalSetID

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

doAddHandler, fireEvent, getAttributeAsDoubleArray, getAttributeAsIntArray, getAttributeAsLong, getAttributeAsMap, getAttributeAsObject, getAttributeAsRecord, getAttributeAsStringArray, getAttributes, getHandlerCount, getJsObj, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttributeAsJavaObject

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

equals, 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 Detail

PickTreeItem

public PickTreeItem()

PickTreeItem

public PickTreeItem(com.google.gwt.core.client.JavaScriptObject jsObj)

PickTreeItem

public PickTreeItem(java.lang.String name)

PickTreeItem

public PickTreeItem(java.lang.String name,
            java.lang.String title)

Method Detail

getOrCreateRef

public static PickTreeItem getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)

setJavaScriptObject

public void setJavaScriptObject(com.google.gwt.core.client.JavaScriptObject jsObj)

Overrides:

setJavaScriptObject in class CanvasItem

changeAutoChildDefaults

public static void changeAutoChildDefaults(java.lang.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.

See Also:

AutoChildUsage

changeAutoChildDefaults

public static void changeAutoChildDefaults(java.lang.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.

See Also:

AutoChildUsage

changePickerIconDefaults

public static void changePickerIconDefaults(FormItemIcon defaults)

setCanSelectParentItems

public void setCanSelectParentItems(java.lang.Boolean canSelectParentItems)

If true, clicking or pressing Enter on a menu item that has a submenu will select that item (with standard behavior of hiding the menus, calling click handlers, etc) instead of showing the submenu.

Parameters:

canSelectParentItems - canSelectParentItems Default value is null

See Also:

Selection overview and related methods, Editing Example

getCanSelectParentItems

public java.lang.Boolean getCanSelectParentItems()

If true, clicking or pressing Enter on a menu item that has a submenu will select that item (with standard behavior of hiding the menus, calling click handlers, etc) instead of showing the submenu.

Returns:

Boolean

See Also:

Selection overview and related methods, Editing Example

setDisplayField

public void setDisplayField(java.lang.String displayField)

Specifies an alternative field from which display values should be retrieved for this item.
If this item is not databound (dataSource is unset), this is implemented by picking up the value of the specified field from the valueTree.
Otherwise this item will attempt to map its underlying value to a display value by retrieving a record from the dataSource where the valueField matches this item's value, and displaying the displayField value from that record.

Overrides:

setDisplayField in class FormItem

Parameters:

displayField - . See String. Default value is null

See Also:

FormItem.invalidateDisplayValueCache()

getDisplayField

public java.lang.String getDisplayField()

Specifies an alternative field from which display values should be retrieved for this item.
If this item is not databound (dataSource is unset), this is implemented by picking up the value of the specified field from the valueTree.
Otherwise this item will attempt to map its underlying value to a display value by retrieving a record from the dataSource where the valueField matches this item's value, and displaying the displayField value from that record.

Overrides:

getDisplayField in class FormItem

Returns:

. See String

See Also:

FormItem.invalidateDisplayValueCache()

setEmptyDisplayValue

public void setEmptyDisplayValue(java.lang.String emptyDisplayValue)

Text to display when this form item has a null or undefined value.

If the formItem has a databound pickList, and its displayField or valueField (if the former isn't set) has an undefined emptyCellValue setting, that field's emptyCellValue will automatically be set to the emptyDisplayValue.

If this method is called after the component has been drawn/initialized: Setter for emptyDisplayValue.

Overrides:

setEmptyDisplayValue in class FormItem

Parameters:

emptyDisplayValue - . See String. Default value is null

getEmptyDisplayValue

public java.lang.String getEmptyDisplayValue()

Text to display when this form item has a null or undefined value.

If the formItem has a databound pickList, and its displayField or valueField (if the former isn't set) has an undefined emptyCellValue setting, that field's emptyCellValue will automatically be set to the emptyDisplayValue.

Overrides:

getEmptyDisplayValue in class FormItem

Returns:

. See String

setEmptyMenuMessage

public void setEmptyMenuMessage(java.lang.String emptyMenuMessage)

This message will be displayed as a single, disabled option in any empty menu/submenu created from this item's data tree.

Note : This is an advanced setting

Parameters:

emptyMenuMessage - . See String. Default value is "No items to display"

See Also:

Tree Example

getEmptyMenuMessage

public java.lang.String getEmptyMenuMessage()

This message will be displayed as a single, disabled option in any empty menu/submenu created from this item's data tree.

Returns:

. See String

See Also:

Tree Example

setLoadDataOnDemand

public void setLoadDataOnDemand(java.lang.Boolean loadDataOnDemand)

If this is a databound item, should the load our set of possible options be loaded on demand (as submenus are displayed), or upfront?

Note : This is an advanced setting

Parameters:

loadDataOnDemand - loadDataOnDemand Default value is null

getLoadDataOnDemand

public java.lang.Boolean getLoadDataOnDemand()

If this is a databound item, should the load our set of possible options be loaded on demand (as submenus are displayed), or upfront?

Returns:

Boolean

setOptionDataSource

public void setOptionDataSource(DataSource optionDataSource)

If set, this FormItem will map stored values to display values as though a ValueMap were specified, by fetching records from the specified optionDataSource and extracting the valueField and displayField in loaded records, to derive one valueMap entry per record loaded from the optionDataSource.

With the default setting of fetchMissingValues, fetches will be initiated against the optionDataSource any time the FormItem has a non-null value and no corresponding display value is available. This includes when the form is first initialized, as well as any subsequent calls to FormItem.setValue, such as may happen when DynamicForm.editRecord is called. Retrieved values are automatically cached by the FormItem.

Note that if a normal, static valueMap is also specified for the field (either directly in the form item or as part of the field definition in the dataSource), it will be preferred to the data derived from the optionDataSource for whatever mappings are present.

In a databound form, if displayField is specified for a FormItem and optionDataSource is unset, optionDataSource will default to the form's current DataSource

Overrides:

setOptionDataSource in class FormItem

Parameters:

optionDataSource - optionDataSource Default value is null

See Also:

List - Combo Box Example

getOptionDataSource

public DataSource getOptionDataSource()

If set, this FormItem will map stored values to display values as though a ValueMap were specified, by fetching records from the specified optionDataSource and extracting the valueField and displayField in loaded records, to derive one valueMap entry per record loaded from the optionDataSource.

With the default setting of fetchMissingValues, fetches will be initiated against the optionDataSource any time the FormItem has a non-null value and no corresponding display value is available. This includes when the form is first initialized, as well as any subsequent calls to FormItem.setValue, such as may happen when DynamicForm.editRecord is called. Retrieved values are automatically cached by the FormItem.

Note that if a normal, static valueMap is also specified for the field (either directly in the form item or as part of the field definition in the dataSource), it will be preferred to the data derived from the optionDataSource for whatever mappings are present.

In a databound form, if displayField is specified for a FormItem and optionDataSource is unset, optionDataSource will default to the form's current DataSource

Returns:

DataSource

See Also:

List - Combo Box Example

setReadOnlyDisplay

public void setReadOnlyDisplay(ReadOnlyDisplayAppearance readOnlyDisplay)

If canEdit is set to false, how should this item be displayed to the user?

The default value for PickTreeItems is disabled - note that readOnly and static appearances have no effect for PickTreeItems.

Overrides:

setReadOnlyDisplay in class FormItem

Parameters:

readOnlyDisplay - readOnlyDisplay Default value is "disabled"

See Also:

DynamicForm.setReadOnlyDisplay(com.smartgwt.client.types.ReadOnlyDisplayAppearance)

getReadOnlyDisplay

public ReadOnlyDisplayAppearance getReadOnlyDisplay()

If canEdit is set to false, how should this item be displayed to the user?

The default value for PickTreeItems is disabled - note that readOnly and static appearances have no effect for PickTreeItems.

Overrides:

getReadOnlyDisplay in class FormItem

Returns:

ReadOnlyDisplayAppearance

See Also:

DynamicForm.getReadOnlyDisplay()

setValueField

public void setValueField(java.lang.String valueField)

Which field in the tree-data should be returned as this item's value? If unspecified, the path will be used

Overrides:

setValueField in class FormItem

Parameters:

valueField - . See String. Default value is null

See Also:

Tree Example

getValueField

public java.lang.String getValueField()

Which field in the tree-data should be returned as this item's value? If unspecified, the path will be used

Overrides:

getValueField in class FormItem

Returns:

. See String

See Also:

Tree Example

fetchData

public void fetchData()

Only applies to databound items (see optionDataSource).
Performs a fetch type operation on this item's DataSource to retrieve/refresh the tree of data displayed as rows in this items menu.

setDefaultProperties

public static void setDefaultProperties(PickTreeItem pickTreeItemProperties)

Class level method to set the default properties of this class. If set, then all subsequent instances of this class will automatically have the default properties that were set when this method was called. 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 effect 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.

Parameters:

pickTreeItemProperties - properties that should be used as new defaults when instances of this class are created

setDataSource

public void setDataSource(DataSource dataSource)

If specified, the tree of possible options will be derived from the dataSource as a ResultTree, rather than using this.valueTree. Options can be loaded on demand or up front according to loadDataOnDemand.

Note : This is an advanced setting

Parameters:

dataSource - dataSource Default value is null

getDataSource

public DataSource getDataSource()

The DataSource that this component should bind to for default fields and for performing DSRequest.

Can be specified as either a DataSource instance or the String ID of a DataSource.

Returns:

DataSource

setValueTree

public void setValueTree(Tree valueTree)

A Tree of options from which the user can select.

Parameters:

valueTree - valueTree Default value is null