Helpers.cs

using System;
using System.Collections.Generic;
using System.Linq;

namespace PingLog
{
    public static class Helpers
    {
        public static string SplitCamelCase(this string input)
        {
            return System.Text.RegularExpressions.Regex
                .Replace(input, "([A-Z])", " $1", System.Text.RegularExpressions.RegexOptions.Compiled).Trim();
        }

        public static string GetAllMessages(this Exception exception)
        {
            var messages = exception.FromHierarchy(ex => ex.InnerException)
                .Select(ex => ex.Message);
            return string.Join(" ", messages);
        }

        public static IEnumerable<TSource> FromHierarchy<TSource>(
            this TSource source,
            Func<TSource, TSource> nextItem,
            Func<TSource, bool> canContinue)
        {
            for (var current = source; canContinue(current); current = nextItem(current))
                yield return current;
        }

        public static IEnumerable<TSource> FromHierarchy<TSource>(
            this TSource source,
            Func<TSource, TSource> nextItem)
            where TSource : class
        {
            return FromHierarchy(source, nextItem, s => s != null);
        }
    }
}