Core Data and multiple selection?
-
Folks,
I've got your typical iTunes type of two-table layout working fine
with Core Data where the range of rows shown in the right table are
dependant upon the relationship signified by the selection of a row in
the left table (i.e. the source list). All this works using the array
controllers and contentSet bindings.
However, what if I want multiple selection permitted on the source
list? Prior to Core Data I've got that working by allowing multiple
selection on the source list table view and having the array
controller behind the right hand table (the detail records) bind its
contentArrayForMultipleSelection to the master array controller
selectedObjects controller key using the key path of
@unionOfArrays.items where items is the path for the detail records.
This doesn't work for Core Data because it wants to use the contentSet
binding and I can't seem to use any controller key other than
selection (can't use selectedObjects and @union...) without producing
an error.
Any ideas? Is it possible to do this with bindings and Core Data?
Gavin -
On May 11, 2005, at 8:07 AM, Gavin McKenzie wrote:> This doesn't work for Core Data because it wants to use the contentSet
> binding and I can't seem to use any controller key other than
> selection (can't use selectedObjects and @union...) without producing
> an error.
>
> Any ideas? Is it possible to do this with bindings and Core Data?
Bind contentArrayForMultipleSelection to @unionOfSets.key.
Jim
