#HELP switch page in code behind

Jul 10, 2014 at 10:50 AM
Hello,
First sorry for my english.

I want to load an other page in button_click I try but i fail every time.
Accueil is my page .xaml

i try this :
Accueil Accueil = new Accueil();
 this.NavigationService.Navigate(Accueil)
 and 
 Accueil Accueil = new Accueil();
this this.COntext = Accueil.
Accueil.xaml is the page which I want to load