Re: Why won't this work!?
Re: Why won't this work!?
- Subject: Re: Why won't this work!?
- From: "Daniele Corti" <email@hidden>
- Date: Wed, 24 Oct 2007 15:31:11 +0200
2007/10/24, Miguel Arroz <email@hidden>:
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.
well, I have an idea of why this doesn't work: whitch version of WO do you have? because before
5.3 isEmpty doesn't work.
Whatever, I think is always a good idea to use count: if the array is null WO understand false, if count is 0 wo understand false, other values are true.
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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Daniele Corti
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