<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:TesterBinder; assembly=TesterBinder"
             x:Class="TesterBinder.Page1">
  
  <StackLayout HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
    <local:TestingBindObject x:Name="blahString" HorizontalOptions="FillAndExpand" BackgroundColor ="Green" Text="{Binding BlahString}">
    </local:TestingBindObject>
    
    <Label Text="{Binding Path=BlahString, Source={x:Reference Name=blahString}}" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" BackgroundColor="Aqua" TextColor="Black" />
    
  </StackLayout>
</ContentPage>