table view refresh question

Question

i was told to do the following to refresh the table

- (void)viewWillAppear:(BOOL)aminated {
    [super viewWillAppear:animated];
    [tableView reloadData];
}

however when i after synthesizing tableView and pluging this in still it doesnt reload on page view. Im not sure why it only refreshes when i put it under didselectrowatindexpath... and i have to click a cell in order for that to work ...