Persistent node.value?

[Thomas]

When I change the check state of a node on the client side, the check state persists through a postback.

But, when I change a node's .value on the client side, it does not persist through the postback.  

Is this just a no-no, or am I missing something?

[Thomas]

BAH, literally seconds after posting that, I discovered  tree.trackChanges() / tree.commitChanges().