The other day at work I ran into an attribute I hadn't heard about, the [Conditional] attribute. In this post I start by describing conditional compilation using pre-processor directives like #if, and then introduce the [Conditional] attribute, and describe how it differs to using #if.Conditional compilation with #if With the release of .NET Core 5 years ago (has it really been that long?!) the need to multi-target .NET libraries and applications became more prominent. As the early versions of .NET...