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IListItemRenderer

Package | mx.controls.listClasses
Interface | public interface IListItemRenderer extends IDataRenderer, flash.events.IEventDispatcher, IFlexDisplayObject, ILayoutManagerClient, ISimpleStyleClient, IUIComponent, flash.display.IBitmapDrawable
Implementors | AdvancedDataGridGroupItemRenderer, AdvancedDataGridHeaderRenderer, AdvancedDataGridItemRenderer, AdvancedListBase, Button, ComboBox, Container, DataGridItemRenderer, DateField, FTEAdvancedDataGridItemRenderer, FTEDataGridItemRenderer, HTML, Image, Label, ListBase, ListItemRenderer, MXAdvancedDataGridItemRenderer, MXItemRenderer, MenuItemRenderer, NumericStepper, OLAPDataGridGroupRenderer, TextArea, TileListItemRenderer, TreeItemRenderer

Language Version : | ActionScript 3.0

Product Version : | Flex 3

Runtime Versions : | Flash Player 9, AIR 1.1

Item renderers and item editors for list components must implement the IListItemRenderer interface. The IListItemRenderer interface is a set of several other interfaces. It does not define any new class methods or properties.

The set of interfaces includes the following: IDataRenderer, IFlexDisplayObject, ILayoutManagerClient, ISimpleStyleClient, IUIComponent. The UIComponent class implements all of these interfaces, except the IDataRenderer interface. Therefore, if you create a custom item renderer or item editor as a subclass of the UIComponent class, you only have to implement the IDataRenderer interface and then you can add to the class definition that the class implements IDataRenderer and IListItemRenderer.

IListItemRenderers are generally dedicated to displaying a particular field from the data provider item and cannot be re-used in other DataGrid columns or in other lists with different fields. If you want to create a renderer that can be re-used you can also implement IDropInListItemRenderer, and the list will pass more data to the renderer that allows the renderer to be re-used with different data fields.

Item renderers and item editors are passed data from a list class' data provider using the IDataRenderer interface. Renderers and editors that implement the IDropInListItemRenderer interface get other information from the list class. The item renderer or item editor uses one or both pieces of information to display the data.

The renderers and editors are often recycled. Once they are created, they may be used again simply by being given a new data and optional `listData` property. Therefore in your implementation you must make sure that component properties are not assumed to contain their initial, or default values.

Public Properties
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| Property | Defined By
--- | --- | ---
|  | accessibilityProperties : AccessibilityProperties | IFlexDisplayObject
|  | alpha : Number | IFlexDisplayObject
|  | baselinePosition : Number [read-only] The y-coordinate of the baseline of the first line of text of the component. | IUIComponent
|  | blendMode : String | IFlexDisplayObject
|  | cacheAsBitmap : Boolean | IFlexDisplayObject
|  | data : Object The data to render or edit. | IDataRenderer
|  | document : Object A reference to the document object associated with this component. | IUIComponent
|  | enabled : Boolean Whether the component can accept user interaction. | IUIComponent
|  | explicitHeight : Number The explicitly specified height for the component, in pixels, as the component's coordinates. | IUIComponent
|  | explicitMaxHeight : Number [read-only] Number that specifies the maximum height of the component, in pixels, as the component's coordinates. | IUIComponent
|  | explicitMaxWidth : Number [read-only] Number that specifies the maximum width of the component, in pixels, as the component's coordinates. | IUIComponent
|  | explicitMinHeight : Number [read-only] Number that specifies the minimum height of the component, in pixels, as the component's coordinates. | IUIComponent
|  | explicitMinWidth : Number [read-only] Number that specifies the minimum width of the component, in pixels, as the component's coordinates. | IUIComponent
|  | explicitWidth : Number The explicitly specified width for the component, in pixels, as the component's coordinates. | IUIComponent
|  | filters : Array | IFlexDisplayObject
|  | focusPane : Sprite A single Sprite object that is shared among components and used as an overlay for drawing the focus indicator. | IUIComponent
|  | height : Number | IFlexDisplayObject
|  | includeInLayout : Boolean Specifies whether this component is included in the layout of the parent container. | IUIComponent
|  | initialized : Boolean A flag that determines if an object has been through all three phases of layout validation (provided that any were required) This flag should only be modified by the LayoutManager. | ILayoutManagerClient
|  | isPopUp : Boolean Set to true by the PopUpManager to indicate that component has been popped up. | IUIComponent
|  | loaderInfo : LoaderInfo [read-only] | IFlexDisplayObject
|  | mask : DisplayObject | IFlexDisplayObject
|  | maxHeight : Number [read-only] Number that specifies the maximum height of the component, in pixels, as the component's coordinates. | IUIComponent
|  | maxWidth : Number [read-only] Number that specifies the maximum width of the component, in pixels, as the component's coordinates. | IUIComponent
|  | measuredHeight : Number [read-only] The measured height of this object. | IFlexDisplayObject
|  | measuredMinHeight : Number The default minimum height of the component, in pixels. | IUIComponent
|  | measuredMinWidth : Number The default minimum width of the component, in pixels. | IUIComponent
|  | measuredWidth : Number [read-only] The measured width of this object. | IFlexDisplayObject
|  | minHeight : Number [read-only] Number that specifies the minimum height of the component, in pixels, as the component's coordinates. | IUIComponent
|  | minWidth : Number [read-only] Number that specifies the minimum width of the component, in pixels, as the component's coordinates. | IUIComponent
|  | mouseX : Number [read-only] | IFlexDisplayObject
|  | mouseY : Number [read-only] | IFlexDisplayObject
|  | name : String | IFlexDisplayObject
|  | nestLevel : int The top-level SystemManager has a nestLevel of 1. | ILayoutManagerClient
|  | opaqueBackground : Object | IFlexDisplayObject
|  | owner : DisplayObjectContainer The owner of this IVisualElement object. | IUIComponent
|  | parent : DisplayObjectContainer [read-only] | IFlexDisplayObject
|  | percentHeight : Number Number that specifies the height of a component as a percentage of its parent's size. | IUIComponent
|  | percentWidth : Number Number that specifies the width of a component as a percentage of its parent's size. | IUIComponent
|  | processedDescriptors : Boolean Set to true after immediate or deferred child creation, depending on which one happens. | ILayoutManagerClient
|  | root : DisplayObject [read-only] | IFlexDisplayObject
|  | rotation : Number | IFlexDisplayObject
|  | scale9Grid : Rectangle | IFlexDisplayObject
|  | scaleX : Number | IFlexDisplayObject
|  | scaleY : Number | IFlexDisplayObject
|  | scrollRect : Rectangle | IFlexDisplayObject
|  | stage : Stage [read-only] | IFlexDisplayObject
|  | styleName : Object The source of this object's style values. | ISimpleStyleClient
|  | systemManager : ISystemManager A reference to the SystemManager object for this component. | IUIComponent
|  | transform : Transform | IFlexDisplayObject
|  | tweeningProperties : Array Used by EffectManager. | IUIComponent
|  | updateCompletePendingFlag : Boolean A flag that determines if an object is waiting to have its updateComplete event dispatched. | ILayoutManagerClient
|  | visible : Boolean | IFlexDisplayObject
|  | width : Number | IFlexDisplayObject
|  | x : Number | IFlexDisplayObject
|  | y : Number | IFlexDisplayObject

Public Methods
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| Method | Defined By
--- | --- | ---
|  | getBounds(targetCoordinateSpace:DisplayObject):Rectangle | IFlexDisplayObject
|  | getExplicitOrMeasuredHeight():Number A convenience method for determining whether to use the explicit or measured height | IUIComponent
|  | getExplicitOrMeasuredWidth():Number A convenience method for determining whether to use the explicit or measured width | IUIComponent
|  | getRect(targetCoordinateSpace:DisplayObject):Rectangle | IFlexDisplayObject
|  | globalToLocal(point:Point):Point | IFlexDisplayObject
|  | hitTestObject(obj:DisplayObject):Boolean | IFlexDisplayObject
|  | hitTestPoint(x:Number, y:Number, shapeFlag:Boolean = false):Boolean | IFlexDisplayObject
|  | initialize():void Initialize the object. | IUIComponent
|  | localToGlobal(point:Point):Point | IFlexDisplayObject
|  | move(x:Number, y:Number):void Moves this object to the specified x and y coordinates. | IFlexDisplayObject
|  | owns(displayObject:DisplayObject):Boolean Returns true if the chain of owner properties points from child to this UIComponent. | IUIComponent
|  | parentChanged(p:DisplayObjectContainer):void Called by Flex when a UIComponent object is added to or removed from a parent. | IUIComponent
|  | setActualSize(newWidth:Number, newHeight:Number):void Sets the actual size of this object. | IFlexDisplayObject
|  | setVisible(value:Boolean, noEvent:Boolean = false):void Called when the visible property changes. | IUIComponent
|  | styleChanged(styleProp:String):void Called when the value of a style property is changed. | ISimpleStyleClient
|  | validateDisplayList():void Validates the position and size of children and draws other visuals. | ILayoutManagerClient
|  | validateProperties():void Validates the properties of a component. | ILayoutManagerClient
|  | validateSize(recursive:Boolean = false):void Validates the measured size of the component If the LayoutManager.invalidateSize() method is called with this ILayoutManagerClient, then the validateSize() method is called when it's time to do measurements. | ILayoutManagerClient

Wed Nov 15 2017, 09:50 AM +01:00