Re: Implementing Table Selection Support for Custom Controller?
Re: Implementing Table Selection Support for Custom Controller?
- Subject: Re: Implementing Table Selection Support for Custom Controller?
- From: Colin Cornaby <email@hidden>
- Date: Thu, 26 Apr 2007 23:47:43 -0700
By "remote array", I mean database that is not on the local machine.
I'm basically trying to create bindings support for a MySQL array.
What you've suggested is actually what I'm doing now. The problem is
that when I bind a table view to the array controller, the array
controller goes through and queries every row in the table for it's
values, which really slows down the program unnecessarily. I
understand the NSArrayController is probably doing this for sorting
and so on, but given that I can control that in the SQL query, I
really don't need NSArrayController doing those sort of things for
me. My classes are designed to only pull values from rows when they
are needed to be displayed.
On Apr 25, 2007, at 7:02 PM, mmalc crawford wrote:
On Apr 25, 2007, at 10:46 AM, Colin Cornaby wrote:
I'm writing my own custom controller that does not use an NSArray
for it's backing (it uses a remote array of objects). I'm
basically trying to mimic an NSArrayController and am trying to
figure out how to implement the the selection observing of a table
view that NSArrayController does.
It's not clear what you mean by "remote array".
Can you not simply use an ordinary NSArrayController and in
whatever object it is that manages the "remote array" implement
suitable indexed accessor methods to "simulate" the array?
<http://developer.apple.com/documentation/Cocoa/Conceptual/
KeyValueCoding/Concepts/AccessorConventions.html#//apple_ref/doc/
uid/20002174-178830-BAJEDEFB>
mmalc
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