View based table binding to alternate object?
View based table binding to alternate object?
- Subject: View based table binding to alternate object?
- From: Jim Thomason <email@hidden>
- Date: Tue, 11 Aug 2015 11:46:31 -0500
This example is a little contrived, because I'm struggling with how to
phrase it properly. The answer to the question might be as simple as "You
can't do that,", and I'm cool if it is, I just want to confirm I'm not
doing something stupid.
I have an array controller of mutable dictionaries. It has two keys - "A"
and "B".
I have a view based table -
I bound the table's Table Content -> Array Controller arrangedObjects
Table Cell View.Table View Cell. value is bound -> Table CellView
objectValue.A.
Table Cell View.Table View Cell. value is bound -> Table CellView
objectValue.B.
This all works just fine. I then tried to rebind my "B" column to an
arbitrary external object with a constant parameter. Assume that this is a
class, instantiated within IB, that just has a single method, conveniently
also called "B", which returns a single value - "B". It's wrapped up in an
Object Controller.
I rebound my second column:
Table Cell View.Table View Cell. value is bound ->
staticObjectController.selection.B.
This does not work. I receive no errors (other than Xcode not being able to
resolve the key path), and the table just displays the default text
repeated.
If I try this with a cell based table, it works -
bind Table 2.ColumnA.value -> arraycontroller.arrangedObjects.A
bind Table 2.columnB.value -> staticObjectController.selection.B
Repeats "B" as expected in columnB.
It only seems to be in a view based table that it doesn't work.
Do I have to cells in a view based table to the cell view/objectValue path?
Is there some other obvious gotcha I'm missing? Should this just not be
done? What gives?
I can provide a sample project if this isn't clear.
Thanks,
-Jim...
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