Code snippet to manage TableView rows

UpdateTableViewRows.m

//--------------------------------------------------------------
// To add a row
//--------------------------------------------------------------

// TODO: append one row to self.dataArray 
//

NSIndexPath* indexPath = [NSIndexPath indexPathForRow:self.dataArray.numberOfItems - 1 inSection:0];

[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
					  withRowAnimation:UITableViewRowAnimationAutomatic];

// Make sure the added row is visible
//
[self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES];

//--------------------------------------------------------------
// To delete a row at 'index'
//--------------------------------------------------------------

// TODO: remove the specified row from self.dataArray 
//

// Update table view
//
NSIndexPath* indexPath = [NSIndexPath indexPathForRow:index inSection:0];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
                      withRowAnimation:UITableViewRowAnimationAutomatic];

//--------------------------------------------------------------
// To update a row at 'index'
//--------------------------------------------------------------

// TODO: update the row in self.dataArray
//

// Update table view
//
NSIndexPath* indexPath = [NSIndexPath indexPathForRow:index inSection:0];
[self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
                      withRowAnimation:UITableViewRowAnimationAutomatic];