Try grabbing the project again - I have cleaned up a few things which should make this a bit easier.
http://ericgorr.net/cocoadev/TableColumnTest.zip It should crash everytime as long as in TableController.m the column are not being removed from the table first. You will have to go in an comment out that line of code yourself. I have also uploaded two screen recordings showing the crash. http://ericgorr.net/cocoadev/TableColumnTestCrash01.m4v http://ericgorr.net/cocoadev/TableColumnTestCrash02.m4v The first movie is just using xcode & the debugger. The second movie is running with zombies. On Jan 12, 2011, at 9:52 AM, Keary Suska wrote: > On Jan 11, 2011, at 5:49 PM, Eric Gorr wrote: > >> I do release them after adding them to the table. It will still crash... > > I cannot reproduce the crash with your test project. Have you verified, using > zombies, that in fact it is a table column crashing? It might have to do with > an invalid data source object... > >> On Jan 11, 2011, at 7:29 PM, Peter Lübke <sound-fab...@gmx.de> wrote: >> >>> Table columns are retained by the table view they are added to. >>> >>> So you can safely release or autorelease the table column right after >>> invoking -addTableColumn: . >>> The table view owns its columns and will release them when it itself is >>> released. >>> >>> This is the normal behaviour when adding subviews to an NSView or its >>> subclasses. >>> >>> Peter >>> >>> >>> Am 11.01.2011 um 18:06 schrieb Eric Gorr: >>> >>>> I've got a sample test project at: >>>> >>>> http://ericgorr.net/cocoadev/TableColumnTest.zip >>>> >>>> which reproduces the strange crash. >>>> >>>> I have a NSTableView to which I need to add NSTableColumns manually using >>>> the addTableColumn: method. The problem is that for some reason when I >>>> release the window and everything is being deallocated, someone has an >>>> extra retain on the table column and it sticks around. This causes a crash >>>> because the OS tries to redraw the table which really isn't there. >>>> >>>> Note: With the code as written, it will only cause a crash sometimes...if >>>> you comment back in the call to the EventAvail function in >>>> WindowTestAppDelegate.m, it will crash every time...this is how I ended up >>>> finding the odd behavior to begin with - I am working with a cocoa/carbon >>>> app and EventAvail is still being called. >>>> >>>> I can avoid the crash if, in my TableController class, I manually remove >>>> the table column from the table first. Is this what I am expected to do if >>>> I manually add the column? I would not have thought so, but perhaps I am >>>> wrong...? >>>> >>>> In TableController.m, I have the function GetNewColumn which creates a new >>>> table column. After I alloc and init the column, I can log the retain >>>> count of the column and see that it is 1. After I call setWidth: on the >>>> table column, I can see that the retain count is 2. >>>> >>>> Can anyone shed some light on what might be going on here and why it is >>>> crashing? >>>> >>>> (if it matters, I am still running on 10.6.5) > > Keary Suska > Esoteritech, Inc. > "Demystifying technology for your home or business" > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
