NSKeyValueCoding returns an Object ...... I don't think it works with
native types .... that's why we use [EMAIL PROTECTED] and not just .count I guess.
this method returns native boolean ....... not Boolean ..... I think
that might be the problem with that not working for you. (just
educated guess)
In any case I would try something like this (just a hunch without
checking for you since no time to do that right now) ..... I think
zero (like null) might evaluate to false ..... not sure without
checking though....
ShowDowndloadsConditional: WOConditional {
condition = [EMAIL PROTECTED];
negate = true;
}
...or do what I usually do is Wonder is in your app .... use
ERXGreaterThanConditional and compare count to zero
HTH, Kieran
On Oct 24, 2007, at 9:19 AM, Miguel Arroz wrote:
Hi!
Sometimes I really think I should change business!
I have this binding:
ShowDowndloadsConditional: WOConditional {
condition = downloads.isEmpty;
negate = true;
}
"downloads" is an NSArray.
When running, I get this:
Reason:
<my.top.secret.package.name.ExportDownloadItem 0xb95569> valueForKey
(): lookup of unknown key: 'isEmpty'. This class does not have an
instance variable of the name isEmpty or _isEmpty, nor a method of
the name isEmpty, _isEmpty, getIsEmpty, or _getIsEmpty
The ExportDownloadItem is an object in the array.
My question is... why!?!?!? :)
If I do this the dull way (write a method that returns
downloads.isEmpty() ) and bind to it, this works.
Yours
Miguel Arroz
Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
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