pass-data

I tried to print the array in the controller, before passing it to a view and this is the output Array ( [annunci] => Array ( [0] => stdClass Object ( [EmailDatore] => you@welcom.it [Nome] => asdasd [Cognome] => asdas [IdAnnuncio] => 9 [Titolo] => sfsdfdsfshrea [Testo] => agrefdgdagdfg [Categoria] => [Sede] => [TipoContratto] => [Add_Date] => [Drop_Date] => ) [1] => stdClass Object ( [EmailDatore] => you@welcom.it [Nome] => asdasd [Cognome] => asdas [IdAnnuncio] => 10 [Titolo] => fafa [Testo] => fafaerea asdasdas dafasfd [Categoria] => [Sede] => [TipoContratto] => [Add_Date] => [Drop_Date] =>

I am in this situation: I am passing 4 array from Progress Table to Detail Exercise using prepare for segue and it works fine! The problem begin when I try to pass the data back from the Detail Exercise Controller to the Progress Table Controller. I would like to use the default navigation back button to go back to the parent view. Actually I'm using this code but it doesn't work, well the data pass from the child to the parent view but i can't see the result in the Progress Table, seems like i need to refresh but i also tryed the reloadData after the viewDidLoad and it doesn't work. Any