Data Grid Reactive - simultaneously add and update lines

I am working on an application using Data Grid Reactive. Editing lines works fine. Adding lines works fine. But I can't do both in the same client action since the jSON deserialize only seems to deal with one at a time (either added lines or edited lines.) Is this by design? Is there a way to get around this? Thanks for any help. If there's an existing document on this, please point me to it!



If you download the DEMO of the DataGrid Reactive (it is on the forge with the component) you will found a method, I think the name is GetChanges() or something similar, and in that method you could see how to desarialize at the same time all changes.

I attached a image of a very similar method I am using on an app. 

Kind regards

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