UIPickerView in UIViewController

[intl]

I have a xib in which I have added a UIViewController named delta. The view under delta is controlled by the delta viewcontroller, not the file owner. On the delta view, I have a UIViewPicker. My issue is that I am programming in the UIPickerView in the deltaviewcontroller and I'm issuing deltaviewcontroller as the delegate and data source for the UIPickerView. Everything should work, but when I load the deltaviewcontroller's view, the application crashes. If I carry out everything the same way under the file's owner view, it works fine. I'm wondering if there is really a way to make the UIPickerView work with a UIViewController and no necessarily a file's owner.

For references, the code:

Header

@interface DeltaViewController : UIViewController <UIPickerViewDelegate, UIPickerViewDataSource> {
	
	NSMutableArray *arrayNo;
	IBOutlet UIPickerView *pickerView;
	
}


@property (nonatomic, retain) UIPickerView *pickerView;
@property (nonatomic, retain) NSMutableArray *arrayNo;

@end

Implementation

#import "DeltaViewController.h"


@implementation DeltaViewController

@synthesize pickerView;
@synthesize arrayNo;


- (void)viewDidLoad
{
	NSMutableArray *dollarsArray = [[NSMutableArray alloc] init];
	
	for (int i = 0; i < 100; i++)
	{
		NSString *item = [[NSString alloc] initWithFormat:@"%i", i];
		[dollarsArray addObject:item];
	}
	
	//NSArray *dollarsArray = [[NSArray alloc] initWithObjects:@"1", @"2", @"3", nil];
	//NSArray *centsArray = [[NSArray alloc] initWithObjects:@"1", @"2", @"3", nil];
	
	self.arrayNo = dollarsArray;
	
	[dollarsArray release];
	
}


#pragma mark -
#pragma mark Picker Data Source Methods


- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
	return 1;
}


- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
	return [arrayNo count];
}


#pragma mark Picker Delegate Methods

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
	return [arrayNo objectAtIndex:row];
}


/*
 // The designated initializer.  Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
 if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
 // Custom initialization
 }
 return self;
 }
 */

/*
 // Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
 - (void)viewDidLoad {
 [super viewDidLoad];
 }
 */

/*
 // Override to allow orientations other than the default portrait orientation.
 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
 // Return YES for supported orientations
 return (interfaceOrientation == UIInterfaceOrientationPortrait);
 }
 */

- (void)didReceiveMemoryWarning {
	// Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
	
	// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload
{
	// Release any retained subviews of the main view.
	// e.g. self.myOutlet = nil;
}


- (void)dealloc {
	[arrayNo release];
	[pickerView release];
    [super dealloc];
}


@end

Please point out if I'm doing anything wrong. Help is much appreciated.