I'm having various intermittent problems with NSOutlineView which I can only presume is somehow caused by my use of a secondary thread to augment the node tree supplied via a data source.
My assumption has been that I'm not doing anything that should cause NSOutlineView a problem. I am strictly adding additional nodes to the tree. I am not removing nor modifying existing trees. I am using NSMutableArrays to hold the nodes in the tree. One thread is adding child nodes while the main thread maybe accessing the arrays through the data source. I find it hard to imagine that NSMutableArray could be causing the problem. I cannot figure out what type of scenario could or should cause NSOutlineView a problem. Any suggestions appreciated. So far I've noticed three types of errant behavior at random inconsistent times: 1) A crash occurs with a nil pointer deep in the bowels of NSOutlineView processing. I don't have source, so the stack trace doesn't mean much to me. I never have even an intermediate state where any property or pointer is nil. I fully construct the node before adding it to the tree. 2) The view displays the tree. I have code to expand the tree down to a level of nodes created in the main thread. Sometimes after the view displays the tree, it suddenly disappears as if some other layer redrew over it. The outline view itself is still visible where I have it configured to a banded background. 3) In the main thread, I create a few nodes, then spawn a thread to populate the deepest node with children. In the main thread I tell the NSOutlineView to expand the nodes that were created by the main thread, one layer higher than where the children are being added. The expanded view sometimes gets messed up. Sometimes it does not display the last node as expandable even though I have code asking to reload the nodes added in the main thread, and display the view. Thanks _______________________________________________ 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 [EMAIL PROTECTED]
