filter-tree.as

protected function refreshData():void
{
	for(var i:int=0;i<_arvoreCorporativaCaminhoes.length;i++)
	{
		_arvoreCorporativaCaminhoes[i].children = new ArrayCollection(_arvoreCorporativaCaminhoes[i].children.source);
		refreshRecursiveChildren(_arvoreCorporativaCaminhoes.source[i]);
	}
	tr.dataProvider = _arvoreCorporativaCaminhoes;
}

private function refreshRecursiveChildren(obj:Object):void
{
	if(obj.children)
	{
		for each(var o:Object in obj.children.source)
		{
			refreshRecursiveChildren(o);
		}
		
		obj.children = new ArrayCollection(obj.children.source);
		obj.children.filterFunction = filterData;
		obj.children.refresh();
	}
}

public function filterData(i:Object):Boolean
{
	var searchString:String = txtFiltro.text;
	
	if(searchString.length == 0
		|| i.descricao.toLowerCase().indexOf(searchString.toLowerCase()) >= 0)
	{
		return true;
	}
	else if(i.children != null && i.children.length > 0)
	{
		return true;
	}
	return false;
}