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I have an NSTabView with 2 items (one, two). My question is: How do I find out which tab the user clicked on? I tried to draw a connection between the tab and the object controller, which didn’t work.

To retrieve the selected item at any time:

- (NSTabViewItem *)selectedTabViewItem

Returns the tab view item for the currently selected tab, or nil if no item is selected. If there is a delegate and the delegate supports it, send the delegate the tabView:shouldSelectTabViewItem: message.

To perform an action when an item is selected, implement

- (void)tabView:(NSTabView *)tabView didSelectTabViewItem:(NSTabViewItem *)tabViewItem

in your tab view’s delegate and check [tabViewItem identifier] to determine which tab is selected.

Could you point me to some sample code or a tutorial on how to use the delegate? ( I know what it does but don’t know how to implement it).

It’s just the same as using any delegate - drag from the tab view to your controller object in IB, and connect the delegate outlet, or do [tabView setDelegate: self] in your controller object’s code. Here’s Apple’s docs on the subject:


I’m struggling with another problem: didSelectTabViewItem is only called twice and then never again. Even using [tabView setDelegate:self] in didSelectTabViewItem doesn’t help. I don’t understand what is happening. It is not only happening with one tabView but two. They each have another delegate but didSelectTabViewItem is only called twice. Any ideas? Could this be a Tiger issue or a bug? I’m using MacOS 10.4.2 —- Is it still a problem? I’m using 10.4.8 and am able to receive didSelectTabViewItem method calls more than twice with two tabViewItems, setting the delegate only in IB.