arrowButtonStyleFilters:Object  [leitura-somente]

Set of styles to pass from the ComboBase to the down arrow button

Implementação
    protected function get arrowButtonStyleFilters():Object

Ver também

borderMetrics:EdgeMetrics  [leitura-somente]

Retorna um objeto EdgeMetrics que tem quatro propriedades: left, top, right, e bottom. The value of each property is equal to the thickness of the corresponding side of the border, expressed in pixels.

Implementação
    protected function get borderMetrics():EdgeMetrics

protected var collection:ICollectionView

The ICollectionView of items this component displays.

dataProvider:Object  [ler-escrever]

The set of items this component displays. This property is of type Object because the derived classes can handle a variety of data types such as Arrays, XML, ICollectionViews, and other classes. All are converted into an ICollectionView and that ICollectionView is returned if you get the value of this property; you will not get the value you set if it was not an ICollectionView.

Setting this property will adjust the selectedIndex property (and therefore the selectedItem property) if the selectedIndex property has not otherwise been set. If there is no prompt property, the selectedIndex property will be set to 0; otherwise it will remain at -1, the index used for the prompt string. If the selectedIndex property has been set and it is out of range of the new data provider, unexpected behavior is likely to occur.

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get dataProvider():Object
    public function set dataProvider(value:Object):void

editable:Boolean  [ler-escrever]

A flag that indicates whether the control is editable, which lets the user directly type entries that are not specified in the dataProvider, or not editable, which requires the user select from the items in the dataProvider.

If true keyboard input will be entered in the editable text field; otherwise it will be used as shortcuts to select items in the dataProvider.

O valor padrão é false. This property is ignored by the DateField control..

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get editable():Boolean
    public function set editable(value:Boolean):void

imeMode:String  [ler-escrever]

Especifica o modo IME (editor do método de input). The IME enables users to enter text in Chinese, Japanese, and Korean. Flex sets the specified IME mode when the control gets the focus, and sets it back to the previous value when the control loses the focus.

A classe flash.system.IMEConversionMode define constantes para os valores válidos para essa propriedade. Você também pode especificar null para especificar nenhum IME.

O valor padrão é null.

Implementação
    public function get imeMode():String
    public function set imeMode(value:String):void

protected var iterator:IViewCursor

The main IViewCursor used to fetch items from the dataProvider and pass the items to the renderers. At the end of any sequence of code, it must always be positioned at the topmost visible item on screen.

restrict:String  [ler-escrever]

Set of characters that a user can or cannot enter into the text field.

O valor padrão é null.

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get restrict():String
    public function set restrict(value:String):void

Ver também

selectedIndex:int  [ler-escrever]

O índice no data provider do item selecionado. If there is a prompt property, the selectedIndex value can be set to -1 to show the prompt. If there is no prompt, property then selectedIndex will be set to 0 once a dataProvider is set.

If the ComboBox control is editable, the selectedIndex property is -1 if the user types any text into the text field.

Unlike many other Flex properties that are invalidating (setting them does not have an immediate effect), the selectedIndex and selectedItem properties are synchronous; setting one immediately affects the other.

O valor padrão é -1.

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get selectedIndex():int
    public function set selectedIndex(value:int):void

selectedItem:Object  [ler-escrever]

The item in the data provider at the selectedIndex.

If the data is an object or class instance, modifying properties in the object or instance modifies the dataProvider object but may not update the views unless the instance is Bindable or implements IPropertyChangeNotifier or a call to dataProvider.itemUpdated() occurs.

Setting the selectedItem property causes the ComboBox control to select that item (display it in the text field and set the selectedIndex) if it exists in the data provider. If the ComboBox control is editable, the selectedItem property is null if the user types any text into the text field.

Unlike many other Flex properties that are invalidating (setting them does not have an immediate effect), selectedIndex and selectedItem are synchronous; setting one immediately affects the other.

O valor padrão é null;.

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get selectedItem():Object
    public function set selectedItem(value:Object):void

text:String  [ler-escrever]

Contents of the text field. If the control is non-editable setting this property has no effect. If the control is editable, setting this property sets the contents of the text field.

O valor padrão é "".

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get text():String
    public function set text(value:String):void

protected var textInput:TextInput

The internal TextInput subcomponent that displays the current selection.

textInputStyleFilters:Object  [leitura-somente]

The set of styles to pass from the ComboBase to the text input. These styles are ignored if you set the textInputStyleName style property.

Implementação
    protected function get textInputStyleFilters():Object

Ver também

value:Object  [leitura-somente]

The value of the selected item. If the item is a Number or String, the value is the item. If the item is an object, the value is the data property, if it exists, or the label property, if it exists.

Note: Using the selectedItem property is often preferable to using this property. The value property exists for backward compatibility with older applications

Essa propriedade pode ser usada como a fonte para a união de dados.

Implementação
    public function get value():Object

public function ComboBase()

Constructor.

protected function calculatePreferredSizeFromData(numItems:int):Object

Determines default values of the height and width to use for the entries in the drop-down list. Each subclass of ComboBase must implement this method and return an Object containing two properties: width and height.

Parâmetros

numItems:int — The number of items to check to determine the size

Retorna

Object — An Object with width and height properties

protected function collectionChangeHandler(event:Event):void

Responds to changes to the data provider. The component will adjust the selectedIndex property if items are added or removed before the component's selected item.

Parâmetros

evento:Event — The CollectionEvent dispatched from the collection

Ver também

protected function downArrowButton_buttonDownHandler(event:FlexEvent):void

Performs some action when the drop-down button is pressed. This is an abstract base class implementation, so it has no effect and is overridden by the subclasses.

Parâmetros

evento:FlexEvent

protected function itemToUID(data:Object):String

Determines the UID for a dataProvider item. Every dataProvider item must have or will be assigned a unique identifier (UID).

Parâmetros

data:Object — A dataProvider item

Retorna

String — Um identificador exclusivo.

protected override function measure():void

Determines the measuredWidth and measuredHeight properties of the control. The measured width is the width of the widest text in the dataProvider plus the width of the drop-down button. The measured height is the larger of either the button or the text. If no data provider has been set or there are no items in the data provider, the measuredWidth property is set to UIComponent.DEFAULT_MEASURED_WIDTH and the measuredHeight property is set to UIComponent.DEFAULT_MEASURED_HEIGHT.

Ver também

protected function textInput_changeHandler(event:Event):void

Handles changes to the TextInput that serves as the editable text field in the component. The method sets selectedIndex to -1 (and therefore selectedItem to null).

Parâmetros

evento:Event

protected override function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void

Sizes and positions the internal components in the given width and height. The drop-down button is placed all the way to the right and the text field fills the remaining area.

Parâmetros

	unscaledWidth:Number — Especifica a largura do componente, em pixels, nas coordenadas do componente, independente do valor da propriedade scaleX do componente.
	unscaledHeight:Number — Especifica a altura do componente, em pixels, nas coordenadas do componente, independente do valor da propriedade scaleY do componente.

Ver também