Example of how to work with MVVM pattern using the MVVMCoffee nuget package - http://julianocustodio.com/mvvmcoffee

Customer.cs

using MVVMCoffee.Models;

namespace Sample.Models
{
    public class Customer : BaseModel
    {
        public string Name
        {
            get { return _name; }
            set { SetProperty(ref _name, value); }
        }
        string _name = string.Empty;

        public int Age
        {
            get { return _age; }
            set { SetProperty(ref _age, value); }
        }
        int _age;
    }
}