Re: NSTableColumn not usable with binder of class NSTextValueBinder?
Re: NSTableColumn not usable with binder of class NSTextValueBinder?
- Subject: Re: NSTableColumn not usable with binder of class NSTextValueBinder?
- From: Dave Dribin <email@hidden>
- Date: Tue, 19 Aug 2008 17:47:15 -0500
On Aug 19, 2008, at 5:19 PM, Corbin Dunn wrote:
You can in IB3; just double click on the cell...then set the class.
It's not letting me set it to my custom cell. It just beeps (IB
version 3.1, build 670). I think this is because the column is setup
a text field cell, and it will only let me set the class to an
NSTextFieldCell subclass. There's no plain NSCell in the Library from
what I can find.
Otherwise, you have to manually set up your binding in code after
you set the [tableColumn dataCell]. The binding is specific to the
cell type. If you need a code example, I can dig one up.
Just tried that, too, and now I get the following error in the console
(with -NSBindingDebugLogLevel 1):
Cocoa Bindings: Error accessing bound property value of object
<NSTableColumn: 0x256ca0>: [<NSTableColumn 0x256ca0>
valueForUndefinedKey:]: this class is not key value coding-compliant
for the key value.
Here's my code, which looks very similar to the ManualBindings sample
code:
[column bind:@"value"
toObject:controller
withKeyPath:@"arrangedObjects.whatever"
options:nil];
Again, what's strange is if I change my cell's superclass to be
NSTextFieldCell, this bind: call does not give an error and it all
works. I also tried subclassing NSActionCell, and that works, too.
Is my cell not implementing some method that bindings expects to be
there? Something that is implemented in NSActionCell?
-Dave
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