NSDatePicker - getting the value when it is changed

Question

How would I get notified of a value of a NSDatePicker, when it's changed?

Answer 1

I've only done it on the iPhone with UIDatePicker but it is similar on the Mac, you register as a delegate and receive messages. See Apple's Docs here.

I should clarify, this tells you when it changed, you still need to call -dateValue to get the date.

Answer 2

You can bind the picker's value binding to a property of your controller, or a property of a model object (through a controller).

Answer 3

The same you would any other control. Options are:

• Target/Action
• Binding
• Observe notification
• Delegate