Dependency Injection with Sitecore

I frequently see Sitecore implementations that use no form of Dependency Injection (DI) or perhaps worse still lean on a Service Locator Pattern to build up component dependencies. When I tweeted about this situation some of the responses I got back really surprised me.

Wondering why more #sitecore web forms devs don’t use an IoC and employ DI. It’s 5 minutes work to get property injection going.

— @KevinObee .. October 26, 2013

I’m not sure whether there is a lack of awareness about DI around some areas of the Sitecore developer community or, as some of the responses to the tweet suggested, we have more than our fair share of Dark Matter Developers.

In this post I’ll try to give the briefest overview of what DI is, and show just how simple it is to implement in a Sitecore solution.