WhereParsed extension method, combining Where and Select for attempted conversions (like TryParse)

WhereConvertedExtensions.cs

/*
Usage: "1,2,c,4".Split(',').WhereParsed<int>(int.TryParse)
*/

public delegate bool TryConversion<TIn, TOut>(TIn input, out TOut output);

public static class WhereConvertedExtensions
{
    /// <summary>
    /// Filters an enumerable to elements that succeeded in conversion via a "Try*" pattern implementation
    /// </summary>
    public static IEnumerable<TOut> WhereConverted<TIn, TOut>(this IEnumerable<TIn> source, TryConversion<TIn, TOut> conversion)
    {
        foreach (TIn value in source)
        {
            TOut converted;
            if (conversion(value, out converted))
                yield return converted;
        }
    }

    /// <summary>
    /// Filters an enumerable to elements that succeeded in conversion via a "TryParse" pattern implementation
    /// </summary>
    public static IEnumerable<TOut> WhereParsed<TOut>(this IEnumerable<string> source, TryConversion<string, TOut> conversion)
    {
        return source.WhereConverted(conversion);
    }
}