Question

In Xcode 4 I created a new Cocoa application called Tabletest, on the xib I added a NSTableView and control-dragged it to the app’s delegate object (created automatically when you create the new Cocoa app). I set the table’s dataSource and delegate to the app’s delegate object called Tabletest App Delegate.

On tabletestAppDelegate.h and tabletestAppDelegate.m I added the (apparently) required

- (int)numberOfRowsInTableView:(NSTableView *)tableView;
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row;

- (int)numberOfRowsInTableView:(NSTableView *)tableView
{
    return (int)[myArray count];
}

- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row
{
    return [myArray objectAtIndex:row];
}

and declared an NSMutableArray like NSMutableArray * myArray;
Then I control-dragged the table to the .h and created a property like:

@property (assign) IBOutlet NSTableView *myTable;

On the .m file I added the implementation of numberOfRowsInTableView and (id)tableView...

and added:

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    myArray = [[NSMutableArray alloc] initWithCapacity:10];
    int i = 0;
    for(i=0; i<10;i++) 
    {
        [myArray insertObject: [NSString stringWithFormat:@"This is string %d!",i+1] atIndex:i];
    }

    NSEnumerator * enumerator = [myArray objectEnumerator];
    id element;

    while((element = [enumerator nextObject]))
    {
        // Do your thing with the object.
        NSLog(@"%@", element);
    }

}

The `NSLog show the array gets filled but the info never shows on the table. What am I missing? I am a complete newbie on Cocoa and I have no idea why adding information to a simple table is so complicated.

Thank for the help.

Answer 1

I’ll answer my own question, add

[_myTable reloadData];