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Data persistence in TreeGrid after drag & drop event

Hello,


We have a scenario in where we use the TreeGrid to display hierarchial data fetched from a remote server (using a custom API adaptor in the DataManager). We also want to support drag and drop of all rows.

When a row is dropped in another location, the TreeGrid is refreshed, causing all of the rows to go back to a collapsed state. But we would like the TreeGrid to stay in the state it already was, so all of the expanded rows should stay expanded (and collpased rows should stay collapsed). Is there a way to keep expanded rows open, and only refresh rows where the drag and drop occured?

Thanks in advance!