the code below sets up a List object in the main controller class that

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Asked: May 18, 20262026-05-18T22:03:18+00:00 2026-05-18T22:03:18+00:00

the code below sets up a List object in the main controller class that

0

the code below sets up a List object in the main controller class that uses a custom cell renderer (CustomListCell class). the CustomListCell class creates a Button object for the cell that will be used to delete itself from the List’s DataProvider.

how can i properly access the parent List object from its custom cell renderer?

//Controller Class
private function createList():void
 {
 provider = new DataProvider(data);

 list = new List();
 list.width = 200;
 list.height = 400;
 list.rowHeight = 50;
 list.dataProvider = provider;
 list.setStyle("cellRenderer", CustomListCell);
 }

-----

//CustomListCell Class
import fl.controls.Button;

public class CustomListCell extends Sprite implements ICellRenderer
 {     
 public function CustomListCell()
  {
  var button:Button = new Button();
  button.label = "Delete Cell";
  button.addEventListener(MouseEvent_MOUSE_DOWN, deleteCellHandler);
        addChild(button);
  }

 private function deleteCellHandler(evt:MouseEvent):void
  {
  //Access List/DataProvider Here
  }

 //required implemented ICellRenderer functions follow
 }

UPDATE

the following is my working custom renderer that implements ICellRenderer with Flash v3 List component. the List’s dataProvider consists of 2 elements for each cell: randomColor and randomNumber.

package
{
//Imports
import fl.controls.Button;
import fl.controls.List;
import fl.controls.listClasses.ICellRenderer; 
import fl.controls.listClasses.ListData;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.geom.ColorTransform;

//Class
public class TouchListRenderer extends Sprite implements ICellRenderer
    {
    //Properties
    private var cellWidthProperty:Number;
    private var cellHeightProperty:Number;
    private var dataProperty:Object;
    private var listDataProperty:ListData;  
    private var selectedProperty:Boolean;

    //Cell Display Objects
    private var backgroundCanvas:MySprite = new MySprite();
    private var numberTextField:TextField = new TextField();
    private var button:Button = new Button();

    //Constructor
    public function TouchListRenderer()
        {
        }

    //Size Setter (Getter Functions Intentionally Omitted)
    public function setSize(width:Number, height:Number):void
        {
        cellWidthProperty = width;
        cellHeightProperty = height;
        }

    //Data Setter
    public function set data(value:Object):void
        {
        dataProperty = value;
        }

    //Data Getter
    public function get data():Object
        { 
        return dataProperty; 
        }

    //List Data Setter
    public function set listData(value:ListData):void
        { 
        listDataProperty = value;
        }

    //List Data Getter
    public function get listData():ListData
        { 
        return listDataProperty; 
        }

    //Selected Setter
    public function set selected(value:Boolean):void
        { 
        selectedProperty = value;

        layout();
        }

    //Selected Getter
    public function get selected():Boolean
        { 
        return selectedProperty;
        }

    //Size And Layout
    private function layout():void
        {
        var newColor:ColorTransform = new ColorTransform();
        newColor.color = dataProperty.randomColor;

        backgroundCanvas.transform.colorTransform = newColor;
        backgroundCanvas.scaleX = cellWidthProperty / backgroundCanvas.width;
        backgroundCanvas.scaleY = cellHeightProperty / backgroundCanvas.height;

        numberTextField.text = dataProperty.randomNumber;
        numberTextField.autoSize = TextFieldAutoSize.LEFT;
        numberTextField.textColor = 0xFFFFFF;
        numberTextField.x = 50;
        numberTextField.y = cellHeightProperty / 2 - numberTextField.height / 2;
        numberTextField.border = true;
        numberTextField.selectable = false;

        button.label = "Delete";
        button.x = cellWidthProperty - button.width - 50;
        button.y = cellHeightProperty / 2 - button.height / 2;
        button.drawNow();
        button.addEventListener(MouseEvent.MOUSE_DOWN, buttonClickEventHandler);

        addChild(backgroundCanvas);
        addChild(numberTextField);
        addChild(button);
        }

    //Button Click Event Handler
    private function buttonClickEventHandler(evt:MouseEvent):void
        {
        List(listDataProperty.owner).removeItemAt(listDataProperty.index);
        }

    //Style Setter
    public function setStyle(style:String, value:Object):void
        {
        }

    //Mouse State Setter
    public function setMouseState(state:String):void
        {
        }
    } 
}

package
{
import flash.display.Sprite;

public class MySprite extends Sprite
    {
    public function MySprite()
        {
        graphics.beginFill(0xFF0000);
        graphics.drawRect(0, 0, 10, 10);
        graphics.endFill();
        }
    }
}