I have come across with something on one of my colleague's code who is recently coding for a Win 8 Metro Style App(C# XAML) as me. The point that made me curious is that he did not use any XAML code(other than the declaration statements in .xaml file) while he wrote the application and it seems the app works. So can anyone tell me that why/where should I use XAML or why/where should I not?
Thanks in advance