https://www.microsoft.com/china/MSDN/library/netFramework/netframework/DesignerHosting.mspx?mfr=true
http://www.cnblogs.com/mrlen/archive/2010/08/11/1797327.html
http://www.codeproject.com/Articles/569753/WPF-Form-Designer-Prototype-MVVM
http://www.cnblogs.com/michael-zhang/
http://wenku.baidu.com/link?url=a98CxMug1u-J-RFk4E7kaS29OHPDRu8ois26v5qvbUnpdRtrjyNb0ReGtAM-9uvHKPfgktFyM7naPWUQj-3uVcGfli85zjPwmG0-j5Yr42O