Re: programmatically implementing segmented control

FROM : Jerry Krinock
DATE : Tue Feb 12 21:25:43 2008

On 2008 Feb, 12, at 10:58, Daniel Child wrote:

> I am looking for to programmatically set up an NSSegmentedControl 
> with menus for each segment.


That should look interesting!

> When I run the program, the menu does appear correctly for each 
> segment, but the problem is that all the items are disabled. I tried 
> using -setEnabled when creating each of the menu items, but that 
> didn't work. I also set the action to @selector (getUserChoice), a 
> method in the controller code.


All the working actions I've ever seen have one argument.  As you have 
written it, "getUserChoice" has 0 arguments.  "getUserChoice:" (note 
the colon) has one argument.  The full declaration is  -
(IBAction)getUserChoice:(id)sender.

Another thing which can cause menus to not be enabled is if you've 
implemented -validateMenuItem: or -validateUserInterfaceItem: in some 
object in the responder chain which is returning NO for unknown items.

Finally, remember to -setTarget: in your menu items.