Hi,

After single/some data has been changed, I can refresh specific node(s) in Tree by using:
org.zkoss.zul.AbstractTreeModel.
public void fireEvent(int evtType, int[] path, int indexFrom, int indexTo)
but this required parent node.

In our case, sometimes we need also to refresh only specific level-0 (root) nodes.

Do you have already some kind solution to handle this?

If you don't, can you please provide a mechanism to support this case.
Or can you at least open this method:
org.zkoss.zul.Tree.
private void renderChangedItem(Treeitem item, Object node){
as protected/public ?

Regards,
Henry Girsang