Re: NSTextField and bindings
Re: NSTextField and bindings
- Subject: Re: NSTextField and bindings
- From: Chris Pavicich <email@hidden>
- Date: Tue, 04 May 2004 13:48:21 -0400
Steve:
Total shot in the dark: Is the continuously updates value box ticked?
--CMP
On Tuesday, May 04, 2004, at 11:45AM, Steve Sims <email@hidden> wrote:
>
Hi all,
>
>
I have an NSTextField in my app and I'm using bindings to hook it up to
>
my data model. Now it's important that this text field keeps a value,
>
and is not set to an empty string. With that in mind I wrote a quick
>
setter method as follows:
>
>
- (void)setText:(NSMutableString *)newText {
>
if ((text != newText) && ([newText length]>0)) {
>
[text release];
>
text = [newText copy];
>
}
>
}
>
>
Now whilst this ensures that within my data model the text field keeps
>
its value when an empty string is attempted to be entered in the UI the
>
UI does not reflect this: the text field on screen stays empty.
>
>
I tried adding in [self willChangeValueForKey:@"text"]; and [self
>
didChangeValueForKey:@"text"]; calls at the beginning and end of this
>
setter (outside the if) since I thought that may force the UI to
>
update, but it didn't work.
>
>
Any suggestions?
>
>
Steve
>
_______________________________________________
>
cocoa-dev mailing list | email@hidden
>
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
>
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.