Use "includedNode" attribute to define boolean expression specifying condition for nodes inclusion.
thanks for your quick answer. I've tried this before, but could not succeed with this approach.
If you have an concrete idea, please let me know.
This approach works fine for the 3rd level, because within this level I could use
to determine whether the 3rd level has children or not.
But there must be a possibility to determine from the 1st/2nd level, whether the 3rd level has children or not.
Sorry, but I'm a beginner with JSF/Trees...
Thanks for your help,
Create the property that will return true or false for this condition just in model.