Thanks to all who helped me with this challenge of obtaining the
number of characters in a string.
On 20 Jul 2008, at 13:12, Tim Isted wrote:
Try using
[text2 setStringValue:[NSString stringWithFormat:@"%i", [[Field1
stringValue] length]]];
Using setIntValue on a text field won't set the text field's
stringValue to be a string from that int.
That worked perfectly - thanks Tim.
On 20 Jul 2008, at 13:16, Ron Fleckner wrote:
Still struggling with documentation!
That might be because the documentation makes the reasonable
assumption that you already know how to use C and Objective-C.
You're not recognising the difference between the data types 'int'
and 'pointer to object'. The text field expects a pointer to an
NSString. Telling it to setIntValue:someInt is just you hoping
it'll work.
What you need to do is [text2 setStringValue:[NSString
stringWithFormat:@"%d", [text1 length]]];
You should read the documentation, paying attention to method return
types and etcetera. Also, bone up on basic C. It will help a lot.
I'm trying! Honest! I've studied 'Learn C for Cocoa' at http://cocoadevcentral.com/articles/000081.php
, and a C programming book, as well as looking up stuff on the Web but
it's a very slow process. The fact that I'm dyslexic doesn't help
(although that's not a good excuse) as I need to go over things again
and again to 'get' them ... although once I've 'got it', it tends to
stay put! Getting there. Slowly.
On 20 Jul 2008, at 14:41, Andy Lee wrote:
On Jul 20, 2008, at 8:12 AM, Tim Isted wrote:
Try using
[text2 setStringValue:[NSString stringWithFormat:@"%i",
[[textField1 stringValue] length]]];
Using setIntValue on a text field won't set the text field's
stringValue to be a string from that int.
I believe this is incorrect. Try simply
[text2 setIntValue:[[text1 stringValue] length]];
The original mistake was using [text1 length], which asks the text
*field* for its length (no such method) instead of asking the text
field's *string*.
Interesting. Although Tim's original suggest did work (so it wasn't
'wrong' as such...) your simpler version also works and seems much
neater as it simply asks for the length of the string value of text1.
Thanks everyone!
Phil
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