Mario,
On Oct 5, 2009, at 4:44 PM, Mario Kušnjer wrote:
> Hello to the list !
>
> Request for help regarding a little problem.
> So I have this piece of code:
>
> - (IBAction)addNewItem:(id)sender
> {
> if ([lsOutlineView selectedRow] < 0)
> {
> [sourceListLevelZero addObject:[Parent new]];
> [lsOutlineView reloadItem:nil reloadChildren:YES];
> [lsOutlineView expandItem:nil expandChildren:YES];
> [lsOutlineView selectRowIndexes:[NSIndexSet
> indexSetWithIndex:[lsOutlineView rowForItem:[Parent new]]]
> byExtendingSelection:NO];
> }
> ...
> }
In addition to what others said, your main misunderstanding is two things:
1. The outlineview identifies unique objects by the pointer address, not
"isEqual". Thus this line creates a new "Parent" object:
> [sourceListLevelZero addObject:[Parent new]];
and this line creates a new (different) Parent object:
> [lsOutlineView rowForItem:[Parent new]]]
2. I highly recommend reading up on memory management in Cocoa (unless you are
creating a GC application). The [Parent new] lines are leaking memory. new is a
shortcut for 'alloc/init' and returns a retained object.
corbin_______________________________________________
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