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Re: [Q] How to add nested items to NSOutlineView?
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Re: [Q] How to add nested items to NSOutlineView?


  • Subject: Re: [Q] How to add nested items to NSOutlineView?
  • From: JongAm Park <email@hidden>
  • Date: Thu, 06 Nov 2008 09:05:03 -0800

Thank you for your answer.

I found same question asked by other person in Cocoa mailing list.

http://www.cocoabuilder.com/archive/message/cocoa/2008/4/7/203440

and an answer refers http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaBindings/Concepts/Troubleshooting.html#//apple_ref/doc/uid/TP40002148-182809




Benjamin Stiglitz wrote:
However, if I get reference of an item in existing view and insert new item in its data source, NSMutableArray, it can't display the newly added nested items.

I tried NSTreeController's rearragneObjects and the NSOutlineView's reloadItem:reloadChildren, but it doesn't seem to work for me.

Can anyone tell me how to add new items?

Since you’re using NSTreeController, you should modify the array in a KVO-compatible way. Take a look at
<http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Protocols/NSKeyValueCoding_Protocol/Reference/Reference.html#//apple_ref/occ/instm/NSObject/mutableArrayValueForKeyPath:>



-Ben

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References: 
 >[Q] How to add nested items to NSOutlineView? (From: JongAm Park <email@hidden>)
 >Re: [Q] How to add nested items to NSOutlineView? (From: Benjamin Stiglitz <email@hidden>)

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