Re: Newbie question: chrash on [tableview reloadData]

FROM : Terje Tjervaag
DATE : Thu Nov 21 20:25:39 2002

Thanks for that, but I don't think that's my problem.  I have after 
much ado managed to figure out where the crash happens.  Well, almost 
at least.  All the code I have written finished without a hitch, but if 
I continue stepping past that, the stack comes to a call that's named 
"[NSControl mouseDown:]", and that's where I'm getting a 
"EXC_BAD_ACCESS" in the debugger.
Still apologise for providing so little solid material on this..  And 
still hoping that someone might be able to help me.. :-)

t.

On Thursday, November 21, 2002, at 06:03 PM, Warren.<email_removed> wrote:

> Probably  the object that you are loading into the row is being 
> disposed
> of after the init method. If you are using a class method like
> NSDictionary *myDict = [NSDictionary dictionaryWithContentsOfFile:path]
> this gets automatically disposed of after the routine finishes unless 
> you
> retain the object like this
> [myDict retain];
>
> This is what causes most type 10 and 11 errors..
> I dont know how or what you are loading in from  a file but principal 
> is
> that same.
> Class objects are autoreleased on exit form a routine unless retained
>
> Have a look thru the cocoa dev archives here
> http://cocoa.mamasam.com/index.php
> or on apple for some more stuff on memory retention or here for another
> article on the same thing
> http://everything2.com/index.pl?node=Cocoa%20Paradigms
>
>
>
>
>
>
> Terje Tjervaag <<email_removed>>
> Sent by: <email_removed>
> 21/11/02 05:14 pm
>
>        To:    <email_removed>
>        cc:
>        Subject:        Newbie question: chrash on [tableview 
> reloadData]
>
>
> Hi people,
>
> Excuse me for the probably very easy question here, but I seem to keep
> hitting my head against the wall on this and it's getting more and more
> annoying.
>
> I am working through Aron Hillegass' book Cocoa Programming for Mac OS
> X, and am currently on a section which involves an NSTableView.  The
> application I create from his tutorial works fine, but when I try to
> create my own from scratch it just crashes whenever I call reloadData
> on the tableview.  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.
>
> Any help appreciated,
> Terje
> _______________________________________________
> cocoa-dev mailing list | <email_removed>
> Help/Unsubscribe/Archives:
> http://www.lists.apple.com/mailman/listinfo/cocoa-dev
> Do not post admin requests to the list. They will be ignored.
>
>
> ***********************************************************************
> ***********
> This email may contain confidential material. If you were not an
> intended recipient, please notify the sender and delete all copies.
> We may monitor email to and from our network.
> _______________________________________________
> cocoa-dev mailing list | <email_removed>
> Help/Unsubscribe/Archives: 
> http://www.lists.apple.com/mailman/listinfo/cocoa-dev
> Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | <email_removed>
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.