Xamarin happily supports two-way binding, and the mechanism will be intensely 
familiar to XAML programmers.
The more I work with Xamarin, the more I think this is where Silverlight went to heaven.
[ This is the third in a series that starts here.]
To illustrate this, let’s create a simple Forms application that provides two way binding of information about books.
Continued here
About Jesse Liberty
Jesse Liberty has three decades of experience writing and delivering software projects and is the author of 2 dozen books and a couple dozen online courses.
Liberty is a Senior AI Engineer at the University of Pittsburgh Medical Center, and was a Team Lead and Senior Software Engineer for various corporations, a Senior Technical Evangelist for Microsoft, a Distinguished Software Engineer for AT&T, a VP for Information Services for Citibank and a Software Architect for PBS. He is a 21 year Microsoft MVP.
familiar to XAML programmers. 
