Adobe® Flex® 4 Language Reference
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spark.components 
IItemRendererOwner 
Packagespark.components
Interfacepublic interface IItemRendererOwner
Implementors DataGroup, SkinnableDataContainer

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

The IItemRendererOwner interface defines the basic set of APIs that a class must implement to support items renderers. A class that implements the IItemRendererOwner interface is called the host component of the item renderer.

The class defining the item renderer must implement the IItemRenderer interface.

See also



Public Methods
 MethodDefined By
  
Returns the String for display in an item renderer.
IItemRendererOwner
  
updateRenderer(renderer:IVisualElement, itemIndex:int, data:Object):void
Updates the renderer for reuse.
IItemRendererOwner
Method Detail

itemToLabel

()method
public function itemToLabel(item:Object):String

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Returns the String for display in an item renderer. The String is written to the labelText property of the item renderer.

Parameters

item:Object — The data item to display.

Returns
String — The String for display in an item renderer.

updateRenderer

()method 
public function updateRenderer(renderer:IVisualElement, itemIndex:int, data:Object):void

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Updates the renderer for reuse. This method first prepares the item renderer for reuse by cleaning out any stale properties as well as updating it with new properties.

The last thing this method should do is set the data property of the item renderer.

Parameters

renderer:IVisualElement — The item renderer.
 
itemIndex:int — The index of the data in the data provider.
 
data:Object — The data object this item renderer is representing.