On Oct 1, 2009, at 11:10 AM, I. Savant wrote:
On Oct 1, 2009, at 10:58 AM, Paul Bruneau wrote:
Thanks for the suggestion, IS. I had in fact tried those and I
tried them again just now (in all combinations), no change.
Hmmm ... This (figure 2):
http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/CocoaBindings/Concepts/MessageFlow.html#/
/apple_ref/doc/uid/TP40002149
... seems to make no promise that anything in the view will be
changed / updated in this scenario, regardless of a transformer.
Well if you look at Figure 2, step #23, it says "Updated value now
stored in model object. Key-value observing notifications are sent to
observers of this model property."
So due to the binding, the text field would get updated by this
mechanism, wouldn't it?
And promise or no, it is occurring in the table view...it's mysterious.
This seems more like a job for an NSFormatter ...
I am pretty ignorant of the differences, but in converting from a
fraction to a number of 32nds, I picked NSValueTransformer. It does
work great :) I'm just seeing this inconsistency between cells in a
table, and text fields in a window.
Thanks again, still listening
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