Dependency Injection

This post will help you understand what DI (Dependency Injection) is, and how easy you can adopt the design patterns to create flexible and testable code. For a definition take a look at this Wikipedia article. From the three types of Dependency Injection constructor injection setter injection interface injection this post covers the interface type. The example will deal with a SharePoint list. This list can either be the posts list of a blog, or the comments list.