expandAll method

void expandAll()

展开所有 node

Implementation

void expandAll() {
  assert(_isInitialized);
  List<EasyTreeNode<E>> result = flatTree(_initialNodes);
  for (EasyTreeNode<E> item in result) {
    if (!item.expanded && !item.isLeaf) this.expand(item);
  }
  toggleNodeExpanded(_initialNodes, true);
}