Question

Is it possible to find if a treeListData is having a sibling or not. In adobe Flex 4 and actionscript 3

Answer 1

Yes, you could check the item property of the TreeListData instance inside an ItemRenderer and either:

• use item as ITreeDataDescriptor and check the hasChildren property
• use item as your custom class and possibly check the length of your children collection (depending on your data-model).

Example code:

protected function dataChangeHandler(event:FlexEvent):void
{
    var node:TreeNode = treeListData as TreeNode;
    if(node != null)
    {
        if(node.children != null && node.children.length > 0)
        {
                hasChildren = true;
                return;
            }
     }

     hasChildren = false;
}

Hope this answers your question.