title: iPhone:Connection delegates not called
body: <p>In my app,everything works fine when run for first time.When I navigate through other views and went back to the same view,I used <code>viewwillappear</code> to call functions.<p>
  On this run,the connection request line gets executed but the connection delegates like <code>didReceiveResponse,didreceivedata,didfinishloading,didFailWithError</code> are not being called.<p></p>
  
  <pre><code>-(void)viewWillAppear:(BOOL)animated{
      [self recentOrderselection];
      [self recentOrderStatus];
  
      [super viewWillAppear:animated];
      [self.tableview reloadData];
  
  }
  
  
  -(void)recentOrderStatus{
  
   ..................
  
          NSData *requestData = [NSData dataWithBytes:[json1 UTF8String] length:[json1 length]];
  
          [request setValue:@"text/plain" forHTTPHeaderField:@"content-type"];
  
          [request setHTTPBody: requestData];
  
          connection = [[NSURLConnection alloc]initWithRequest:request delegate:self];
  
          NSLog(@"URL&gt;&gt;&gt;%@",url);//Got correct URL in log
  
  }
  </code></pre>