Is Dependency Injection possible with a WPF application?

Question

I want to start using dependency injection in my WPF application, largely for better unit testability. My app is mostly constructed along the M-V-VM pattern. I\'m looking at Aut

Answer 1

We are experiencing a similar issue. We are looking forward for a solution that will provide Design time support under Expression Blend 2.0 (Strong Type). Plus we are looking forward for a solution to have some Mock+Auto-Generated data sample available under Expression Blend.

Of course, we are looking also to have all those thing work using an IOC pattern.

Paul Stovell as an interesting article to start with: http://www.paulstovell.com/blog/wpf-dependency-injection-in-xaml

So I try a couple thing to add more valuable design time support for Binding and mocking object at Design time, right now I’m having most of my problem related to get a strong typed connection made between the View (code) to the ModelView(Xaml), I tried a couple scenario:

Solution 1 : Using Generic to create the View

public class MyDotNetcomponent : SomeDotNetcomponent 
{
    // Inversion of Control Loader…
    // Next step add the Inversion of control manager plus
    // some MockObject feature to work under design time
    public T View {Get;}
}

This solution does not work since Blend does not support Generic inside is design surface but Xaml do have some, well work at runtime but not at design;

Solution 2: ObjectDataProvider

Solution 3: Inherit ObjectDataProvider

Solution 4: Create a mock ObjectDataProvider from scratch to the job

Solution 5: Create a Markup Extension (Paul Stovell)

Just to clear one point. When I said “not working in blend”, I mean that the Binding dialog is not usable and the designer needs to handwrite the XAML by itself.

Our next step will probably be to take the time to evaluate the ability to create a plug-in for Expression Blend.