WPF Programming Methodology

Question

In my APP I\'m using an API of a software that my tool is managing. I\'ve DAL that contain 16 classes, 3 of them are singletons. I\'ve some logic in the .cs fil

Answer 1

I would definitely look into DependencyInjection, using a framework like Unity.

Your Singleton classes could be registered with a DependencyInjection container and injected into constructors of other classes (such as ViewModels). So could other DAL classes which need to be instantiated regularly and injected into classes.

DependencyInjection is the single most important design pattern when developing large enterprise software applications and is applicable for both Client & Server code. MVVM is a nice pattern but won't address the issue of overall application complexity related to dependency coupling.