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How to maintain/retain ultra tree nodes(of multi level) expansions after reloading/repopulating the data source?


I am using ultratree and populating the data like below,  with different levels.

When i delete any of the nodes or add the new node at any level, i set the datasource to populate with data of recently added or deleted(i am retrieving from db). My problem is, every time  i delete or add any new nodes, ultra tree collapses. How can i maintain the same expansions that i have previously after reset the datasource.?

Thank in Advance.


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