Grid composition from JSON

My application makes use of multiple Grids, for example Grid A, B, and C. Based on the data selected by the user from these Grids - I compile a Grid D (call it a confirmation Grid).

I was planning to construct/load this final (confirmation) Grid D using JSON. But for this to occur I need to dynamically create a JSON object with unique Row IDs, and embed user selected data from Grid A, B, and C into the data field.

Is there a better way of doing this? Is there any API that you support for this purpose?

As always, your assistance is appreciated.


Unfortunately this no better way to merge the data to the grid.