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objective-cmacoscocoalabelxcode4.5

cannot access label in cocoa - basic cocoa

I spent quite a few hours on this but could not resolve it. I follow this basic tutorial to create cocoa mac os application that has

  • Text Control
  • Button control
  • Label Control

I created a new class, added NSString object, change the class name for NSString object to my class. Then I control+dragged text box, label to myclass.h (outlets). I did the same to button but this time selected action.

Now I put code in action to acess my label, I can't. They do not appear in intellesense. I have spent quite sometime on this. This is a very basic qeustion. what am I doing wrong? i am using XCODE 4.6.3.

------------------- .h file ---------------------
#import <Foundation/Foundation.h>

@interface myclass : NSObject
- (IBAction)doSomething:(id)sender;
@property (weak) IBOutlet NSView *mytextbox;
@property (weak) IBOutlet NSTextField *mylabel;

@end

----------------- .c file ---------------------------
#import "myclass.h"

@implementation myclass

- (IBAction)doSomething:(id)sender {
    [self.mytextbox.value setStringValue:@"hello there"];

    [mytextbox] (not accessible)
}
@end
---------------------------------------------
Solution

  • The trick here was, I had to use underscore character before the variable (property) name. I don't know how why underscore work with and what is its purpose. I am new to xcode. So

    _mytextbox  //worked