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Re: NSArrayController using an external NSArray?
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Re: NSArrayController using an external NSArray?


  • Subject: Re: NSArrayController using an external NSArray?
  • From: Todd Heberlein <email@hidden>
  • Date: Thu, 19 Apr 2007 20:51:14 -0700


On Apr 19, 2007, at 8:02 PM, Todd Heberlein wrote:

On Apr 19, 2007, at 5:25 PM, Ron Aldrich wrote:

[[self mutableArrayValueForKey: @"myArray"] addObject: anObject];

Unfortunately, this did not work either. ... I must still be doing something wrong.

Yep, I made two mistakes. First, I overrode mutableArrayValueForKey for testing purposes, and once I removed this it almost started working. My NSMutableArray and the NSTableView were both updated correctly, but the program would eventually crash.


I then added the following methods to my model (note: my NSMutableArray is called "processes"):

- (unsigned int)countOfProcesses;
- (id)objectInProcessesAtIndex:(unsigned int)index;
- (void)insertObject:(id)anObject inProcessesAtIndex:(unsigned int) index;
- (void)removeObjectFromProcessesAtIndex:(unsigned int)index
- (void)replaceObjectInProcessesAtIndex:(unsigned int)index withObject:(id)anObject;


and gave them the very simple implementations shown below. As of now... everything seems to be working, and I can make my model unaware of the NSArrayController again. Yay!

Thanks!

Todd



- (unsigned int)countOfProcesses
{
	return [processes count];
}


- (id)objectInProcessesAtIndex:(unsigned int)index { return [processes objectAtIndex:index]; }


- (void)insertObject:(id)anObject inProcessesAtIndex:(unsigned int)index { [processes insertObject:anObject atIndex:index]; }


- (void)removeObjectFromProcessesAtIndex:(unsigned int)index { [processes removeObjectAtIndex:index]; }


- (void)replaceObjectInProcessesAtIndex:(unsigned int)index withObject:(id)anObject
{
[processes replaceObjectAtIndex:index withObject:anObject];
}




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References: 
 >NSArrayController using an external NSArray? (From: Todd Heberlein <email@hidden>)
 >Re: NSArrayController using an external NSArray? (From: Todd Heberlein <email@hidden>)
 >Re: NSArrayController using an external NSArray? (From: Ron Aldrich <email@hidden>)
 >Re: NSArrayController using an external NSArray? (From: Todd Heberlein <email@hidden>)

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