Hi Nalam,
My inbox uses Taskprocessing service version 2. Ideally the view here is Master detail view. The master view will have a key field, using which a filter criteria is written.
Say Workitem id : 80000456.
Based on workitem id, you get the entire details on your detail screen.
This can be achieved using getentity method or getentityset.
say : TASKPROCESSING/Collection?$filter=WorkitemId eq '8000456'
or TASKPROCESSING/Collection('8000456')
On press of workitem, you need to add the extra property in the response.
Regards,
Tejas