title: How to reload the UIViewController
body: <p>Can anyone please tell me how to reload the view.In my program,it contain a tab view controller.There is one item named "A" in the tab.And this "A" item is pointing to a viewController.In that view Controller, it is displaying some datas and I have included UIActionSheet in that. There is one button-Delete in the actionsheet.This delete button is for deleting the particular data.Now my problem is that I need to reload that view so that these deleted data should not be displayed. So anyone please tell me how to reload the page. I have included the following code before</p>
  
  <pre><code>[self presentModalViewController:historyView animated:YES];
  [historyView setNeedsDisplay];
  </code></pre>
  
  <p>but it is showing some error :- </p>
  
  <pre><code> No visible @interface for viewcontroller declares the selector 'setNeedsDisplay'
  </code></pre>
  
  <p>Please tell me the solution.. :(</p>