Data lost between tableviews

[martinn]

I have a UINavigationController that contians a UITableView with some UITextFields for the user to input data. When the user clicks on a UIBarButtonItem I save the data in the textfields to an object in my appDelegate that can hold this data. Then I push a new TableView into my UINavigationController. This new TableView uses the data in the object in appDelegate and list it for the user. Now to my problem.

The first time I click UIBarButtonItem to save the data it view the new TableView but in some strange way it doesn't get the data from the textfields. If I then uses the backbutton and then click UIBarButtonItem again the TableView shows up with the right data. I have been trying to figure this out, but can't. What can I be doing wrong?

Please help me out!

The code for saving my textfield-data to the object in appDelegate and push the new viewcontroller:

Profile *profile = [[Profile alloc] init];
[profile seValue1:textfield1.text];
[profile setValue2:textfield2.text];

TestAppDelegate *delegate = [[UIApplication sharedApplication] delegate];
delegate.profile = profile;
[profile release];
		
MyViewController *myViewController = [[MyViewController alloc] initWithNibName:@"MyViewController" bundle:nil];
[[delegate navigationController] pushViewController: myViewController animated:YES];
[myViewController release];

The code that I use in "MyViewController" in the medhod "cellForRowAtIndexPath" to set the text for a cell:

cell.text = [delegate.profile value1]

[Fastrak]

How did you specifically declare profile in your app delegate?

[martinn]

In h-file:

@interface TestAppDelegate : NSObject <UIApplicationDelegate> {
	
	IBOutlet UIWindow *window;
	IBOutlet UINavigationController *navigationController;
	Profile *profile;
}

@property (nonatomic, retain) UIWindow *window;
@property (nonatomic, retain) UINavigationController *navigationController;
@property (nonatomic, retain) Profile *profile;

In m-file:

@implementation TestAppDelegate

@synthesize window;
@synthesize navigationController;
@synthesize profile;

...

[Fastrak]

I am thinking you may want to try

[delegate setProfile: profile];

instead of

delegate.profile=profile;

(using the setter will force the retain)

Aarom

[martinn]

Thanks Fastrak!

Using setProfile makes it works the first time, but this is a little strange:
In the list with textfields I also have an UISlider and a UISegmentedControl. If I click the UIBarButtonItem the first time the data shows up fine but then I go back and change either the UISlider value or the UISegmentedControl selected item. Then click UIBarButtonItem again and the data is lost. I really don't understand this!

Is there something I'm still missing?

[scottiphone]

You can set the debugger to watch your value to see if/when it changes.
Is there any chance something else is over writing it elsewhere?
You also have to make sure if you're dealign with objects that they're correctly retained and not being released somewhere.