In this blog post, Kunal Chowdhury discusses using ImplicitDataType in Silverlight 5 and gives an example.
Source: Kunal's Blog
ImplicitDataType is a new feature in Silverlight 5. Using ImplicitDataType, you can declare multiple Data Templates for your control and based on the data type, you can load the proper data template automatically.
In this article we will discuss on the same step by step with a good example. Read the complete article to know it in depth.