如何使用Unity 4和MvvmLight在Visual Studio中启用设计时数据

I'm trying to get my head around WPF, Unity and MvvMlight (galasoft). So far my little set up works. If I run my application the label is filled with a random name generated by my DataService. (small victory getting all moving parts to work)I'm trying to get my head around WPF, Unity and