ComboBox Defined within a Table Not working

Hello Experts,

Am new to UI5 and with first app am stuck with Combox Box Value Selection. Attaching the XML View and Controller for you to correct what am doing wrong...

Here first Table will display using Odata. Then am binding 2 ComboBox to JSON. Each ComboBox depends on other fields in the table. Basically a dynamic ComboBox. Problem is am getting the values from Odata read and binding to ComboBox doesn't seems to work.

Please help.

controller.txt

xml-view.txt