public MainAppViewModel(NavigationService navigationService)
{
_navigationService = navigationService;
Messenger.Default.Register <NavigationMessage>(this, msg => ProcessNavigationMessage(msg));
_navigationService.NavigateTo("bannerIDsearch");
CurrentViewModel = _navigationService.CurrentViewModel;
}
private void ProcessNavigationMessage(NavigationMessage msg)
{
if (msg.ViewModel == "cancel")
{
_navigationService.GoBack();
CurrentViewModel = _navigationService.CurrentViewModel;
}
else if (msg.ViewModel == "exit")
{
Messenger.Default.Send <CloseMessage>(new CloseMessage());
}
else
{
_navigationService.NavigateTo(msg.ViewModel);
CurrentViewModel = _navigationService.CurrentViewModel;
}
}