When I create a new item in the server-side using a Kendo UI data source, how do I update the ID of the client-side data item with the ID of the new record inserted in the database in the server-side?
Doing more research I have found this extremely useful information which, indeed, should be in the docs, but it is "hidden" in a not-so-easy-to-find forum search message:
just see my latest post in the thread that you linked.
If your create method returns the data according to the model including the modified fields such as "id", the datasource and the grid update themselves without an additional roundtrip.