On Mar 20, 2007, at 8:06 PM, Knud Hinnerk Möller wrote:
Hi,
I have two NSArrayControllers and and NSTableColumn. Depending on
some other factors (what is selected in another table), I want to
change which of the controllers is shown in the table. So far I'm
doing this by changing the bindings of the table column. That works
fine, but it is a little messy, because there are actually also
other UI elements that need to be changed accordingly (add and
remove buttons for the table, textfields that display details of
the table selection, ...). I currently have to change bindings for
five different UI elements each time.
My understanding of NSArrayController (or any NSController) is that
it shields the view(UI) from changes in objects in the model. So no
rebinding to model objects are needed by the view layer. So you would
be better off change the content of a single NSArrayController and
let it do the the job it was meant to do in rebinding the changing
objects. Changing out the NSArrayControllers is messy because your
working with with them in a way they are not designed to work, and in
the process rewriting code already written for you by the controllers.
