USERDATA notworking in this purpose?

Good afternoon!
In advance I apologise for my bad English.
For me such problem: I use the Tree and I need to transfer object identifiers which are in a database on a server to the side of the client, then after any manipulations it is Tree it is necessary to transfer back to a server with earlier received identifiers, prompt please as such it is possible to realise?

Whether approaches for these purposes userdata tag as when I use serializeTree a tag userdata there was not present?
:cry: :cry: :cry: :cry:


userdata isn’t serialized by default. To enable userdata serialization you may use setSerializationLevel method:

tree.setSerializationLevel(true); … ationlevel