what is the scope of myBean?
b.t.w. it isn't ok to reRender conditionaly rendered elements. It isn't a source of problem just for future.
Once again thanks for your quick reply!
myBean is in the request scope with a4j:keepAlive.
(a4j:keepAlive tag is outside of the rerendered panel)
About "conditionaly rendered elements", you're right and my sample code is wrong: The actual 'reRender' clause is rerendering another panelgroup embedding the 'treePanel'.
sorry.. checked under richfaces-demo environment and seems works ok.. do you able to send me war file?
Not easy to extract our code to a war.
Can you at least explain us what the "Row key not available" message mean ?
This message is generated when expansion fails due to row data for the particular node is unavailable. As a workaround you can make toggling command link ajaxSingle="true".