help with this schema

[sindroide]

Hello everyone!

Given some ListGrid populated with json datasource file. How can I manage the selected value to store and load it from database?

I'm confusing because ListGrid already has a datasource set, just to load the options...
I'm getting frustrated, please I gonna code this but I need some guide of what I have to do.

Thanks in advance!

[sindroide]

what would I need to re-read to accomplish this?

I have this situation for all my app... don't know how to save and retrieve values of widgets that are fetched from hand made json to list it's options.

any advice is very appreciated