Custom NSButtonCell and NSTableColumn binding
Custom NSButtonCell and NSTableColumn binding
- Subject: Custom NSButtonCell and NSTableColumn binding
- From: Alexander Lamb <email@hidden>
- Date: Fri, 18 Aug 2006 12:15:35 +0200
Hello list,
I searched the list and other sites. Many people seem to have the
same question but none found the answer. So here it goes:
I have a custome NSButtonCell: an LSColorCheckCell which in addition
to having a state ,has a color (checkColor).
I made the cell key-value-coding compliant by implementing the
setCheckColor and checkColor accessor methods.
I havn't made a palette yet but in IB I set my column of the
NSTableView to a NSButtonCell then choose LSColorCheckCell as the
custom cell class.
after loading the nib, I programmatically set the binding between my
controller and my NSTableColumn:
[myTableColumn bind:@"checkColor" toObject:myController
withKeyPath:@"arrangedObjects.color" options:nil];
Unfortunately, I get the following runtime error:
[Session started at 2006-08-18 12:08:55 +0200.]
2006-08-18 12:09:01.443 PeopleTasks[18281] Exception raised during
posting of notification. Ignored. exception:
[<LSColorCheckTableColumn 0x360040> valueForUndefinedKey:]: this
class is not key value coding-compliant for the key checkColor.
2006-08-18 12:09:01.531 PeopleTasks[18281] *** NSRunLoop ignoring
exception '[<LSColorCheckTableColumn 0x360040>
valueForUndefinedKey:]: this class is not key value coding-compliant
for the key checkColor.' that raised during posting of delayed
perform with target 16252a0 and selector 'invokeWithTarget:'
Now this seems logical since it is my cell which is key-value-coding
for checkColor, not my table view. Do I need to create a subclass of
NSTableView with setCheckColor? if so, what object do I forward the
call since obviously it is not the table column keeping the color?
Thanks,
Alex
--
Alexander Lamb
email@hidden
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