completely messed up with bindings...
completely messed up with bindings...
- Subject: completely messed up with bindings...
- From: "Vitaly Ovchinnikov" <email@hidden>
- Date: Thu, 15 Jan 2009 10:10:38 +0300
Hello all,
I have array of Filter objects in my document. Filters are used in two ways:
1. I can select one of them to filter my data
2. I can browse them all and add, delete or/*modify any of them
My document exposes this array via -filters/-setFilters pair. I have
two NSArrayControllers: one for the first task and another for the
second task.
Main window has NSPopUpButton that is bound to the first array
controller. It is used to select filter. Window controller receives
messages from this button and call -setFilter method of my document.
Document filters data and all works fine, but I think there is a
simpler way to "connect" my document's -filter property and to
controller's selection. Is it possible? This is the first question.
Other array controller used for editing filters. I have NSTableView
bound to that controller that shows filter names and NSPredicateEditor
that is bound to selection of the second array controller. It is used
to edit filter.
All works fine, but I can't receive a notify that current filter was
changed. NSPopUpButton somehow knows that name of filter was changed
and displays it immediately. But my document's -setFilter method
didn't get called. -setFilters method didn't get called too.
I tried to bind "filter" property of my document to the first
controller's selection but it didn't work too. I wrote something like
this in the main window controller:
[[self document] bind:@"filter" toObject:pFiltersController1
withKeyPath:@"selection" options:nil]
I even added +initialize method to the document and exposed "filter"
binding. Nothing... Just some errors in log about
"NSControllerObjectProxy predicate: unrecognized selector sent to
instance ......"
So the questions are:
1. How to bind some property of my document to selected object of
NSArrayController? Or at least how to monitor changes of the selected
object?
2. What is the correct way to do what I want (two different types of
operations on one array)?
Thank you.
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