Re: Figuring out which values are selected in an NSTableView
Re: Figuring out which values are selected in an NSTableView
- Subject: Re: Figuring out which values are selected in an NSTableView
- From: Denis Stanton <email@hidden>
- Date: Wed, 18 May 2005 15:38:48 +1200
On May 18, 2005, at 1:32 PM, Scott Anguish wrote:
On May 17, 2005, at 8:55 PM, Andrew White wrote:
Have an NSTableView, contents of which are automatically populated
using bindings.
Can get the set of rows selected using selectedRowIndexes.
Is there a way to directly get the *values* that are displayed in a
particular cell (row & column)? I realise that I can use the
selectedRowIndexes to index into the original array used to generate
the table and then find the correct sub-entry from there, but I'd
rather just use the value if I can.
And what about a sorted table? Does the table transparently preserve
the rowIndexes?
if you're using bindings, just get the selected objects directly
using the mysteriously named -selectedObjects
Hi Scott
I realise this may seem obvious with experience, but unfortunately it's
not clear to me yet. I don't know how to get information on the
current selection via the bindings mechanism.
I have an NSTableView and an NSArrayController and they work perfectly
well displaying an array and allowing it to be edited and saved. What
I don't know is how to get at the values in my application.
The name "selectedObjects" is a useful clue, but I don't know how to
use this little piece of information.
I can see that selectedObjects can be sent to an instance of
NSArrayController but in my app the lines:
- (void)observeValueForKeyPath: (NSString *)keyPath ofObject:
(id)object change: (NSDictionary *)change context: (void *)context {
NSLog(@" selectedObjects = %@", [paymentController selectedObjects]);
}
always return
selectedObjects = (null)
I guess I'm short of a binding (or two), but I don't know what.
My NSArrayController has one binding.
Content Array is bound to File's Owner (MyDocument),
Model Key Path: payments
where "payments" is an MSMutableArray
In my NSTableView each column has a binding of the form
Bind to : NSArrayController
Controller Key :arrangedObjects
Model Key Path: paymentDate
regards
Denis
Denis Stanton
Orcon Internet Limited
(09) 480 9299
http://www.orcon.net.nz
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