Re: NSOutlineView recursive calling crashing app
Re: NSOutlineView recursive calling crashing app
- Subject: Re: NSOutlineView recursive calling crashing app
- From: Greg Hulands <email@hidden>
- Date: Sun, 23 Jun 2002 23:12:18 +1000
Sorry I forgot to mention that. It is sigsegv. How would I see if it is a
retain and release issue? The object should already be retained by the
outline view as is is in the first tier of the heirarchy. When I step
through it, it can access the correct object. It recursively calls the
internal method of NSOutlineView 4055 times before crashing.
Any hint is appreciated.
Regards,
Greg
On 23/6/02 11:06 PM, "email@hidden" <email@hidden> allegedly
made the following allegations:
>
>
What is it crashing with?? I.e. what signal? SEGV?
>
>
Have you used the debugger on it ??
>
>
If you are getting SEGV's maybe the problem is that you have a
>
retain/release issue?
>
I.e. some of the objects within the NSOutlineview aren't being retained
>
and hence
>
later on when you go and access it the app crashes??
>
>
Just some ideas..
>
>
-SJM
>
>
On Sunday, June 23, 2002, at 07:51 AM, Greg Hulands wrote:
>
>
> Hi,
>
> I have an outline view that represents relationships of data. I have it
>
> so
>
> that you can traverse the relationship graph. When you have stepped
>
> into the
>
> relationship hierarchy so that you are now looking at the relationships
>
> of
>
> the first relationship it recursively calls the methods [NSOutlineView
>
> _expandItemEntry:addIntoExpandSet:expandChildren].
>
>
>
> Eg
>
>
>
> e1
>
> | r1 relates to e2
>
> | r2 relates to e3
>
> e2
>
> | r2.1 relates to e1
>
> e3
>
>
>
> When expanded when it crashes the tree looks like this.
>
>
>
> e1
>
> | r1
>
> |-- r2.1
>
> |---- r1
>
> | r2
>
> e2
>
> | r2.1
>
> e3
>
>
>
> Is this a bug with NSOutlineView in that you are not able to show the
>
> same
>
> object in the heirachy twice?
>
>
>
> Any info on this would be greatly appreciated.
>
>
>
> Regards,
>
>
>
> Greg
>
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