title: how to display xaml textbox suggestions list
body: <p>I am developing a Windows Store app using XAML. I have some textbox controls for input. When the user types using the on-screen keyboard I want to display a suggestions list, like the one that appears in the Mail app for example. This does not display by default. How do I enable it? I have tried setting IsTextPredictionEnabled to True but that made no difference.</p>