title: retrieve UITextField using tag
body: <p>I have the following code:</p>
  
  <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
  
      static NSString *CellIdentifier = @"Cell";
  
      UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
      if (indexPath.row == 0)
          cell.tag = 0;
      else {
          cell.tag = 1;
      }
  
      if (cell == nil) {
          cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
  
          UILabel *startDtLbl = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 80, 25)];
          if (indexPath.row == 0)
              startDtLbl.text = @"Username";
          else {
              startDtLbl.text = @"Password";
          }
  
          startDtLbl.backgroundColor = [UIColor clearColor];
  
          [cell.contentView addSubview:startDtLbl];
  
          UITextField *passwordTF = [[UITextField alloc] initWithFrame:CGRectMake(100, 5, 200, 35)];
          passwordTF.delegate = self;
          if (indexPath.row == 0)
              passwordTF.tag = 2;
          else {
              passwordTF.tag = 3;
          }
          [cell.contentView addSubview:passwordTF];
      }
      return cell;
  }
  </code></pre>
  
  <p>I'd like to get the UITextField, how can I do that? I've tried the following and it failed:</p>
  
  <pre><code>UITableViewCell * username_cell = (UITableViewCell*)[self.view viewWithTag:0];
      UITableViewCell * password_cell = (UITableViewCell*)[self.view viewWithTag:1];
  
      UITextField * username = (UITextField*)[username_cell.contentView viewWithTag:2];
      UITextField * password = (UITextField*)[password_cell.contentView viewWithTag:3];
      NSLog(@"Username is %@", [username text]);
      NSLog(@"Password is %@", [password text]);
  </code></pre>