Yet another simple MVVM library for Windows Phone.
Was started as an experiment back in time when there was only one way to perform navigation in WP:
NavigationService.Navigate(new Uri("/SecondPage.xaml", UriKind.Relative));
Obviously this is horrible: it's all string based, no types and compile time checks. We also had to manually construct query string.
Nowadays things has changed and we can navigate to strongly typed Page:
Frame.Navigate(typeof(SecondPage), param);
Much better now, isn't it?
- Compile time checks
- Parameters as
objects, not asstrings
Still feels not very clean for me. Typically navigation is initialized from ViewMovel, so you have to bring the knowlege about UI into your VM.
This library is an attempt to invert this dependency.
You can annotate your view with [DependsOnViewModel] attribute, so that NavigationService can discover and bind all Views to ViewModels.
NavigationService.NavigateTo<Page1ViewModel, Data>(new Data{Id = 1, Value = "value"});That gives you better separation. View models can 'live' in separate assembly and have no references to views at all.