NSMutableArray addObject from SecondViewController expected ':' before '.'

[iambounty]

Hi Everyone,
I was wondering if somebody out there would be as kind to help me out with an annoying little problem. I have looked around for a solution but I have had no luck.

What im trying to do is make a new entry to an NSMutable array from another view controller.


My array is as follows:
BookmarksViewController.h
#import <UIKit/UIKit.h>

@interface BookmarksViewController : UITableViewController {
NSMutableArray *bookmarksArray;
}

@property (nonatomic, retain) NSMutableArray *bookmarksArray;

@end

BookmarksViewController.m
@synthesize bookmarksArray;
- (void)viewDidLoad {
bookmarksArray = [[NSMutableArray alloc] initWithObjects:@"iPhone",@"iPod",@"MacBook",@"Mac Book Pro",nil];
[super viewDidLoad];
}
- (void)dealloc {
[bookmarksArray release];
[super dealloc];
}

Now I try to add an entry to my array from another view controller:

Ch01GettingStarted.m

#import "Ch01GettingStarted.h"
#import "BookmarksViewController.h"

@implementation Ch01GettingStarted

-(IBAction) pushChap01Bookmark: (id)sender{
[BookmarksViewController.bookmarksArray addObject:@"String"];
}

Now when I do this i get an "expected ':' before '.' error".

It doesn't have a problem when I use '[bookmarksArray addObject:@"String"];' from within the implementation file containing the array. Although what I want to do is add the string from another view controller when a command button is pressed.

I noticed that the following person is having the same problem:
http://www.iphonedevsdk.com/forum/ip...ple-views.html

Any help anyone could provide would be much appreciated as this is really bugging me.

Thank You
Carl

[Panther]

The problem is this

[BookmarksViewController.bookmarksArray addObject:@"String"];

BookmarksViewController isn't an object- it's a type of object. You need to create an instance of BookmarksViewController, then you can get and work with its array.

BookmarksViewController *bookmarksViewController = [[BookmarksViewController alloc] init];
[bookmarksViewController.bookmarksArray addObject:@"String"];

[iOS IDDQD]

Originally Posted by Panther

The problem is this

[BookmarksViewController.bookmarksArray addObject:@"String"];

BookmarksViewController isn't an object- it's a type of object. You need to create an instance of BookmarksViewController, then you can get and work with its array.

BookmarksViewController *bookmarksViewController = [[BookmarksViewController alloc] init];
[bookmarksViewController.bookmarksArray addObject:@"String"];

That isn't correct. In that case you'd be creating a new instance of a BookmarksViewController. I'm taking the guess that you need to use an existing instance of BookmarksViewController, by the way that you worded your question: adding something to an array from a "second view controller."

You need to pass the instance pointer to your second view controller first, then use the second line in the reply above. Ignore the first line with the [[alloc] init];