I have used the smaple Code of Xamarin.Andoird.Support.v7.Cardview, although I am getting the following error
Caused by: android.view.InflateException: Binary XML File Line # 1: Error inflating android.support.v7.widget.CardView class
Uninstall Android V7 CardView support component and add it again! Rebuild the project and that's it! you shouldn't be getting this error now! I tried the same and it worked.