Hi, In my outline view I need to allow multiple selection, but only allow all selected items to have the same parent. In other words as soon as the user selects an item with a different parent to the currently selected items even if they are in add to selection mode, the previously selected items get deselected.
The NSOutlineView documentation does not seem to be complete on the relevant methods. According to the NSTableView documentation if the delegate method: tableView:selectionIndexesForProposedSelection is implemented then selectRow:byExtendingSelection will not be called and the documentation for both is available. But for NSOutlineView there doesn't appear any documentation for the delegate method outlineView:shouldSelectItem and the information in the header file only says that for performance reasons it is better to use outlineView:selectionIndexesForProposedSelection: But there is not enough information like for the table view documentation as to whether either of methods are mutually exclusive or not, but also what are the sequence of events and if it is possible to modify the current selection in these methods and whether these are the right places to make the appropriate changes to achieve the selection behaviour we need. Thanks Kevin _______________________________________________ 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
