cocoa touch - problem updating subviews!

I have this UIViewController which contains an UIScrollView. In the viewDidLoad method of the first controller, I create some UIViewControllers(defined through a NIB with an UILabel and an UIImageView inside,linking to IBOutlets done correctly), then I add them to the UIScrollView.

Problem is, I can see my views and scroll through them using the scroll view, but I seem to be unable to modify the text of the label and the content of the imageView using the methods [[UIViewController UILabel开发者_如何学Python] setText] or [[UIViewController UIImageView] setImage]

I know it sound like a stupid question, but I can't get past it. Any idea why?

Thank you guys.

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You need to tag the Label and ImageView.
tag means assign a integer value to label and ImageView and you can access using the tag.
You can assign tags in xib.
Then you can access the view like this

[someController viewWithTag:(int)];

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I think I have resolved my problem. I was trying to modify the views before adding them to the UIScrollView. If I call my methods after the [scrollview addSubView:myView], everything works fine.