Save and Load RadDiagram and store to database as json

Hi,

Is it possible

- to have a radbutton, then on server click, I will be able to save the RadDiagram's json data and persist in a table.column varchar(max)

- on server page load, import a json data (from a table.column) to a RadDiagram control

I saw the examples of json upload/save, but these are client side, I need to persist the user modified diagram to a table.

I saw the examples on how to server data bind a RadDiagram, but I can't see how to save user's modified diagram to begin with.

Thanks,

Henry