I need help with this error in cocoa

[italiano40]

error: void value not ignored as it ought to be

what should i do here is the code
NSString *ip=[ipaddresstextbox selectText:self];

[lee1210]

You're assigning the result of a void function to an NSString *. The error means "that thing returns nothing, so you can't assign it to something". From:
http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSTextField_Class/Reference/Reference.html#//apple_ref/occ/instm/NSTextField/selectText:

"selectText:
Ends editing and selects the entire contents of the receiver if it’s selectable.

- (void)selectText:(id)sender
"

selectText returns void. I think you want stringValue.

-Lee

[cMacSW]

You need to use:

- (NSString *)stringValue