On Oct 30, 2008, at 08:39, Georg Seifert wrote:
once again a beginner question on coredata.
I want to display my data in a outlineview grouped one of the
entities attributes.
my Data:
Elements (
{"titel1", "name1"},
{"titel1", "name2"},
{"titel2", "name3"},
{"titel2", "name4"},
{"titel2", "name5"} )
the OutlineView should show:
titel1
name1
name2
titel2
name3
name4
name5
Can I build it using fetched properties?
It's more an NSOutlineView question than a Core Data question.
For an outline view with bindings, you need a tree-structured
hierarchy of individual objects, each of which (at least) implements
the "children" method whose name you specify for the outline view in
IB. If your titles and names are string attributes, that's not going
to work.
You might be able to do it fairly easily using a data source for the
outline view, instead of bindings, for the name/title column(s).
Or, create a hierarchy of stand-in objects and use bindings.
Or, redesign your Core Data model so that the parent/child
relationships are explicit in the model.
_______________________________________________
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]
