Question

I have a List component that has drop-in CheckBox itemEditor that also serves as the itemRenderer. It displays each item as a simple CheckBox with a label.

However, the itemEditEnd Event does not get triggered until I click on something outside of the List. I want it triggered once the CheckBox is checked or unchecked.

I was thinking of manually dispatching the ListEvent.ITEM_EDIT_END in a CLICK Event handler, but then the itemEditEnd Event would get dispatched twice. There’s gotta be a better way to do this.

Any ideas?

Thanks.

Answer 1

Here is the solution I came up with. I changed my List to use the component as an itemRenderer only, not as a itemRenderer and itemEditor. I then added a MouseEvent.CLICK handler to call a function in the List from the itemRenderer to perform the necessary actions:

My List Component:

package
{
    import mx.controls.List;
    import mx.core.ClassFactory;

    public class CustomCheckBoxList extends List
    {
        public function CustomCheckBoxList()
        {
            super();

            itemRenderer = new ClassFactory(CheckBoxRenderer);
        }

        public function dispatchSelectionEvent(item:Object, selected:Boolean):void
        {
            // Take action here...
        }
    }
}

My ItemRenderer:

package
{
    import flash.events.MouseEvent;

    import mx.controls.CheckBox;

    public class CheckBoxRenderer extends CheckBox
    {
        public function CheckBoxRenderer()
        {
            super();
        }

        override protected function clickHandler(event:MouseEvent):void
        {
            super.clickHandler(event);

            CustomCheckBoxList(listData.owner).dispatchSelectionEvent(data, selected);
        }
    }
}