Our company is using Ninject for DI. I have to create a WPF App with MVVM and want to use Catel. Because our services which have the DB DataContext are injected with Ninject, I don't know where to start.
I've started with a prepared skeleton project. This is what App.xaml.cs contains:
public partial class App : Application
{
public IKernel Container;
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
ConfigureContainer();
ComposeObjects();
Current.MainWindow.Show();
}
private void ConfigureContainer()
{
var modules = new INinjectModule[]
{
new ServiceModule()
};
Container = new StandardKernel(modules);
}
private void ComposeObjects()
{
Current.MainWindow = Container.Get<MainWindow>();
Current.MainWindow.Title = "DI with Ninject";
}
}
The ServiceModule is inherited from NinjectModule.
With that code I can use this constructor of my MainWindow:
public MainWindow(IAuthenticationService authenticationService)
{
InitializeComponent();
ViewModel = new MainWindowViewModel(authenticationService);
DataContext = ViewModel;
}
The IAuthenticationService is injected via App.xaml.cs and Ninject. In my opinion this solution is hard to maintain, because if I need a new service, I have to add it to the constructor of my MainWindow.
Now I need the same thing to work with Catel, but I haven't found something in the documentation.
EDIT: I've found on the documentation that I can register an external IoC container. How do I create my own component (doc: Replacing the default components) which works with the Ninject's standard kernel?
Also is this a good approach of DI or are there better solutions?
