Expand the tree to a specific node?

[shkim]

I am trying to implement a Windows-Explorer-like UI.
All tree data are served by API backend. (using asyncDataLoaderFeature)

If a user enteres a full path in the Address bar, I can resolve it into the corresponding IDs for each folder.
Given the list of folder IDs representing the hierarchy, how can I expand the tree accordingly?

[hosanxiv]

Use a tree ref and call expandSubsequently() with the IDs ordered from the highest ancestor down to the target:

await treeRef.current?.expandSubsequently(pathIds);
treeRef.current?.selectItems([targetId]);
treeRef.current?.focusItem(targetId);

expandSubsequently() is preferable to calling expandItem() in a loop when using asyncDataLoaderFeature. It waits until each newly exposed item exists before expanding the next path segment. The method is part of the tree ref API, and its implementation performs that sequential wait.

The repository also has an exact path-finding example using this sequence, including selecting and focusing the final item afterward.