Unable to destroy buttons and texts in canvas

canvas is a reference to my main canvas.

I did a log of bottoni and text lengh and everything seems ok (2 buttons and 2 texts in canvas).

Code (CSharp):

1.   public void CancellaBottoniUnita()
2.     {
3.  
4.         // Non riesco a distruggere i bottoni e i testi
5.         Button [] bottoni = canvas.GetComponentsInChildren<Button>();
6.         Text[] nomi = canvas.GetComponentsInChildren<Text>();
7.        
8.         foreach(Button bottone in bottoni )
9.         {
10.             Destroy(bottone);
11.         }
12.  
13.         foreach (Text nome in nomi)
14.         {
15.             Destroy(nome);
16.         }
17.  
18.  
19.  
20.     }

 

Take their reference as a game object and then destroy them by gameobject.setActive(false)