How to display data in Subgroup based on row selection in Group ?
NSTableView
with name GroupNSTableView
with name SubgroupNSArrayController
with name GroupsNSArrayController
with name SubgroupsRelationship between Group and Subgroup in Data Model
is set as to-many
Groups is used as controller for Group table view
Subgroups is used as controller for Subgroup table view
Set Controller Content
> Content Set
in Bindings Inspector
to Model Key Path
to relationship
name.