I may have gone about things wrong, but I added drag-and-drop rearrangement to a source view by implementing these NSOutlineViewDataSource methods:
outlineView:writeItems:toPasteboard: outlineView:validateDrop:proposedItem:proposedChildIndex: outlineView:acceptDrop:item:childIndex: If all sanity checks pass, the latter function makes changes to my model and returns YES. These things work, and I can verify that the object graph in the model has changed correctly. But to see the changes reflected in my Source View, I have to collapse and re-expand the affected nodes in order to have them reload data from the model in its new state. (I’m kind of surprised that updating the outline isn’t automatically done as a result of successfully accepting an NSDragOperationMove.) Is it a good idea to call reload functions from outlineView:acceptDrop:item:childIndex:, or should I be doing something else to update the outline? — Charles Jenkins _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
