private
void
LogOut_Click(object
sender, RoutedEventArgs
this.NavigationService.Navigate(new
Uri("/MainPage.xaml",
UriKind
.Relative));
}
this
is my code but it will give an error message like
"An
unhandled exception of type 'System.NullReferenceException' occurred in PhoneApp1.dll"
what
would I do?
e)
{