Binding ComboBoxes to enums… in Silverlight!

Question

So, the web, and StackOverflow, have plenty of nice answers for how to bind a combobox to an enum property in WPF. But Silverlight is missing all of the features that make this

Answer 1

Here is the same setup for a Windows 8.1/Windows Phone universal App, main changes are:-

• Missing DescriptionAttribute in the framework (or at least I can't find it)
• Differences in how reflection works (using TypeInfo.Declared fields)

It seems that the order of the XAML is important too, I had to put ItemsSource before SelectedIndex otherwise it didn't call the ItemsSource binding e.g.

Code below

namespace MyApp.Converters
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Reflection;
    using Windows.UI.Xaml.Data;
    public class EnumToIntConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            // Note: as pointed out by Martin in the comments on this answer, this line
            // depends on the enum values being sequentially ordered from 0 onward,
            // since combobox indices are done that way. A more general solution would
            // probably look up where in the GetValues array our value variable
            // appears, then return that index.
            return (int) value;
        }

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

    public class EnumToIEnumerableConverter : IValueConverter
    {
        private readonly Dictionary> _cache = new Dictionary>();

        public object Convert(object value, Type targetType, object parameter, string language)
        {
            var type = value.GetType().GetTypeInfo();
            if (!_cache.ContainsKey(type))
            {
                var fields = type.DeclaredFields.Where(field => field.IsLiteral);
                var values = new List