Re: Newbie question: chrash on [tableview reloadData]
Re: Newbie question: chrash on [tableview reloadData]
- Subject: Re: Newbie question: chrash on [tableview reloadData]
- From: Fritz Anderson <email@hidden>
- Date: Thu, 21 Nov 2002 13:25:21 -0600
Seeing your document's source code would be helpful, but my guess would
be that when the NSTableView tries to redisplay your data, your
NSMutableArray has been released, and the pointer is noo longer valid.
Is it possible you are getting the NSMutableArray by one of the
convenience methods like [NSMutableArray arrayWithObjects:...] or
[NSMutableArray arrayWithCapacity:...]? If so, the resulting pointer is
autoreleased, and will become invalid when the call chain in which it
was created returns. You should either retain that pointer, or obtain a
retained pointer with initializers like [[NSMutableArray alloc]
initWithObjects:...], etc.
-- F
On Thursday, November 21, 2002, at 11:14 AM, Terje Tjervaag wrote:
I am working through Aron Hillegass' book Cocoa Programming for Mac OS
X
...
I have made my own little file class, containing two strings, the
file name and a description. The application is a document
application and in my document init method I can create a new file and
insert it into the NSMutableArray I use as the datasource for the
tableview. When the application loads it displays this row fine, but
when I try to call reloadData AFTER that, even though I have not added
any objects to my array, the application crashes with a "due to signal
10 (SIGBUS)".
Does anyone have ANY clue as to what can be causing this? I would
give you more details, but I haven't got a clue whats going on here.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.