Windows Phone 8.1 XAML StringFormat

Question

I am trying to display some text along with binded data, for example, I have the code:

Answer 1

StringFormat isn't supported on WinRT. However, you can easily replace it by creating a custom converter:

public class StringFormatConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, string language)
    {
        return string.Format(parameter as string, value);
    }  

    public object ConvertBack(object value, Type targetType, object parameter, string language)
    {
        return null;
    }
}

Then declare it in your page resources:

And use it in your bindings: