macOS Array display help

[gizabo]

Hey, I want to display one object in my array. How can I do this? Here is the code I tried using

	[testLabel setStringValue:@"%@", myList(0)];

Thanks in advance

 

[aaronw1986]

Hey, I want to display one object in my array. How can I do this? Here is the code I tried using

	[testLabel setStringValue:@"%@", myList(0)];

Thanks in advance

What language?

 

[gnasher729]

Hey, I want to display one object in my array. How can I do this? Here is the code I tried using

	[testLabel setStringValue:@"%@", myList(0)];

Thanks in advance

Get a C book. Lookup what a "comma-expression" is. Then ask yourself why you are passing a comma expression to setStringValue. Then fill in the missing bits in this:

	NSString* theFormattedString = <what goes here>;
	[testLabel setStringValue: <and what goes here>];

And after that, how do you write this in one line (if that is what you prefer)?

 

[lee1210]

Some other things to consider... what is the type of myList? What does the expression myList(0) return? Is myList a C function? If not, the syntax is not correct. Is it an NS(Mutable)Array? If so, you need to pass a message, not use a C construct like x() or x[].

Some references:
C operators
http://www.cs.mun.ca/~michael/c/op.html
This table includes [], (), and ,. See which, if any, of these you need in this case. () is also used when invoking a function.

NSString
http://developer.apple.com/DOCUMENT...lasses/NSString_Class/Reference/NSString.html
This should help you fill in one of the blanks in gnasher729's example, and would also help in achieving this in a single line.

NSControl's setStringValue:
http://developer.apple.com/DOCUMENT...apple_ref/occ/instm/NSControl/setStringValue:
This should help you figure out what sort of argument should be passed to this method.

-Lee