title: reload/refresh subViews - setNeedsDisplay doesnt work
body: <p>i have trouble with setNeedsDisplay. I have an UIView with a lot of sub UIViews, created in Inteface Builder. I have also an Button with IBAction. In this IBAction i want to redraw/reload all UIViews (or all UIElements, like UILabel, UIWebView and so on..)  </p>
  
  <p>I am doing this, which doesn't work for me, dont know why.. :  </p>
  
  <pre><code>//redraw the UIViews
  [self.view_card_0 setNeedsDisplay];
  [self.view_card_1 setNeedsDisplay];
  [self.view_card_stapel setNeedsDisplay];
  
  //other UI Elements
  [self.webView_0 setNeedsDisplay];
  [self.webView_1 setNeedsDisplay];
  [self.webView_stapel setNeedsDisplay];
  
  [self.lblCardTitle_0 setNeedsDisplay];
  [self.lblCardTitle_1 setNeedsDisplay];
  [self.lblCardTitle_stapel setNeedsDisplay]; 
  
  [self.img_card_0 setNeedsDisplay];
  [self.img_card_1 setNeedsDisplay];
  [self.img_card_stapel setNeedsDisplay];
  </code></pre>
  
  <p>What to do for redraw/reload/refresh all UIElements/UIViews and Subviews?  </p>
  
  <p><strong>EDIT 1:</strong></p>
  
  <p><strong>How i load the view:</strong>  </p>
  
  <pre><code>detailViewController = [[DetailViewController alloc]  
  initWithNibName:@"DetailViewController_iPad" bundle:[NSBundle mainBundle]];  
  </code></pre>
  
  <p>The detailviewcontroller has no viewcontroller, just uiviews, here the hierarchie:  </p>
  
  <ul>
  <li>UIView<br>
  -- UIViewContainer<br>
  --- UIView0<br>
  --- UIView1<br>
  --- UIViewStapel  </li>
  </ul>
  
  <p><strong>What i expect to do:</strong>  </p>
  
  <p>*<em>I dont want to reset the UIView, i want to change the background and the content of them. *</em>  </p>
  
  <p>I have in my detailview a lot of subviews (uiviews), see above hierarchie. I am displaying content in the UIViews, the content comes from coreData.<br>
  The view1 contains the current row of coreData.<br>
  The view0 contains the previous row of coreData.<br>
  The viewStapel contains the next row of coreData.  </p>
  
  <p>With IBAction i want to iterate the coreData rows, display the next row in current if the action is called..and so on..</p>
  
  <p>In Log, the data is changed, but not displayed in the UIViews. Cause of this i need a redraw or reload or something like this, to get displayed the current data. </p>
  
  <p><strong>EDIT 2: SOLVED</strong><br>
  <strong>I have put the code in a new method and calling this method have solved my problem.</strong></p>