Expand a tree path by sending the internalId as parameter

Please consider the situation:

1. I'm using Extjs' tree.Panel to have some sort of navigation on a page.
2. I have a list of item开发者_JAVA百科s in another portion of the page, whose list items have a unique id that matches the internalId of a node in the tree.
3. I wish to bind a click for each list item and expand the tree to the node specified by the id on the item.

I intend to use the expandPath(path) method from the tree. My question would be: how can I get the path string with just the internalId? Thank you.

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Unfortunately function NodeInterface.getPath was vanished from extjs4. So there is no way to use expandPath(path). But, instead, you can use

tree.store.getNodeById('ext-record-23').bubble(function(node){node.expand()});