Re: programmatically modifying NSPopUpButton's NSMenu
Re: programmatically modifying NSPopUpButton's NSMenu
- Subject: Re: programmatically modifying NSPopUpButton's NSMenu
- From: p3consulting <email@hidden>
- Date: Sat, 20 Dec 2003 20:22:57 +0100
All the methods you are invoking are correct (numberOfItems etc.),
BUT you have to use them on the the poup button itself !
e.g. [myPopUpButton numberOfItems] [myPopUpButton removeItemAtIndex:0]
etc.
see the NSPopUpButton documentation.
if they still don't work you should first check that myPopUpButton is
not nil in awakeFromNib.
myPopUpButton being nil in awakefromNib could be the consequence of not
loading the nib the correct way,
often by double instantiation of the window controller (manually
calling alloc/init on the window controller class...)
Pascal Pochet
P3 Consulting
On 20 dic. 2003, at 19:23, Chuck Soper wrote:
Hello,
How do I programmatically add and remove menu items from an
NSPopUpButton at runtime? I've done numerous searches on
cocoa.mamasam, but I wasn't able to find the answer. I did find one
post that said, "This problem has been discussed to death, so please
see the archives."
In IB, I dragged an NSPopUpButton to my window. This window is in a
separate nib file. I added an NSPopUpButton outlet to my controller
and made the connection. I added an action to my controller for
selecting the popup menu and implemented the method.
In awakeFromNib, numberOfItems is always zero yet the menu has two
items:
int numberOfItems = [[myPopUpButton menu] numberOfItems];
printf("menu Items = %d\n", numberOfItems);
numberOfItems = [myPopUpButton numberOfItems];
printf("popup Items = %d\n", numberOfItems);
In awakeFromNib, the following code does nothing:
[myPopUpButton removeAllItems];
Or:
[[myPopUpButton menu] removeItemAtIndex:0];
[[myPopUpButton menu] removeItemAtIndex:1];
At runtime, my popup menu has two items and I have confirmed that my
action for selecting the popup menu is being called. I'm sure I'm
missing something simply. Can someone help me?
Thanks, Chuck
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