How to move focus of Toggle's Navigation?

Code (CSharp):

1. public void EquipInvenChanged(Toggle tog)
2.     {          
3.         if (tog.isOn)
4.         { EventSystem.current.SetSelectedGameObject(tog.gameObject);
5.          }
6.      }
7.  

But I call above function by click some toggle, keyboard's direction key does not react.

Why and how to make it work?

I already set many toggle's navigation as explicit and set reference each others.

 

I solved.