How to save the selected items from a list in db

I am using dhtmlxList and would like to save the list of selected items to a database or set it in the request parameters.
I need some help with this.

Here you can find a working sample: … _crud.html
The similar on you can find in your suite package.
Here is the docs about the dataprocessor component, allowing to perform CRUD operations with the dhtmlx components:

I want to save it in a request parameter process the selected values and then save it to the database.