[pde-ui-dev] Refreshing a part of TreeViewer

[Agustinus Tedja <agustinus.tedja@xxxxxxxxxxxxxxxx>]

Hello everybody,
I am new in this mailing-list and I hope I throw the questions into the 
correct forum. If it is wrong, please give me a hint to where I should 
throw such questions.
It is about TreeViewer in the Eclipse plug-in. I have a system that 
constantly add new leaves to the tree. And meanwhile the tree is updated 
or new item is added, I wish that someone can look inside and expand one 
of the leaves and that leaf is kept opened.
Till now I am only using TreeViewer#refresh() method. This method 
refreshes correctly the model but collapses the whole tree and no leaves 
are opened. Thus we have to click again on the leaves to see inside.
Can anybody give me a hint how to realise that ?
Thank you very much.

Best regards,
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Agustinus Tedja