I am currently learning objective c and cocoa
I believe I understand the difference between properties and instance
variables, and the effect of using properties as opposed to instance
variables viz a viz KVO and memory management.
What I can't understand is why you would access instance
I have an NSTableView with 3 columns.
The first contains an NSPop-up which takes as its datasource an array of
objects with two properties, name and cost. The name is displayed.
The user enters a quantity in the 2nd column.
How do I go about displaying the cost in the third column? I can bind
