I posted my reply in the other thread that you have opened with the same question. For convenience, I am pasting it below:
Employees1 is a navigational property created by EF which can be used to get the related employees. No recursive function is needed in this scenario. The particular demo loads the children on demand and makes a separate request for each node children so the result from the server should be just the children of the item with id equal to the id value passed with the request. You can check the model and all related code in the sample application
included with the wrappers.
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