Hi, all, My application has an outline view that is used to select filters on a companion table view by selecting nodes in the outline. The outline also adjusts itself to the content of the table, which runs the risk of some interesting feedback loops. (It's hard to believe how long a Mac Pro can take to overflow a stack...)
Anyway, I have carefully managed the interactions so that the content and selections of the views do not change unnecessarily, and it's mostly working for an edge case that has me stumped. If I select a certain node in the tree, the code sets a filter predicate on the table view's controller, and the table view content adjusts accordingly. As a result of the change in the table view content, most or all of the siblings of the selected tree node are removed. (It sounds weird, but it makes sense in this case. I hope.) I am very careful to edit the tree controller's content, not rebuild it, so the actual tree node object for the selected node is unaffected. The problem is that, in limited cases, the selected node becomes deselected in the tree, even though there are no selection will/did change notifications, and the NSTreeController still thinks the node is selected (according to -[NSTreeController selectedNodes]), even though the outline view does not (visually and per -[NSTableView selectedRowIndexes], which NSOutlineView inherits). FWIW, the index path of the selected node does not change in the case that breaks. The inconsistency in the selection information between the view and the controller have me stumped. I'm going to try to work around this by trying to re-apply the selection after I set the filter, but I'd really rather get to the bottom of it. Any ideas welcome, as always. TIA, Doug K; _______________________________________________ Cocoa-dev mailing list ([email protected]) 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]
