public class Foo
{
    public object Bar
    {
        get
        {
            return Get();
        }
        set
        {
            Set(value);
        }
    }

    private dynamic Get([CallerMemberName] name = null)
    {
        //Use name to get value out of dictionary
    }

    private void Set(object value, [CallerMemberName] name = null)
    {
        //Use name to hash the given value
    }
}