Hello all again. Dear Adrien, Thanks a lot for your response. I'm at home now, so that I can not test your solution until tomorrow. But how do you exactly destroy your tree?
And if you really destroy it to build it new: isn't your current visualized structure (the expanded and collapsed nodes) also destroyed, so that all the expanded nodes are collapsed again? How do you restore the view exactly as it was before the update of the tree? Thanks again for your help, Steffen
