/// <summary>
/// A helper method that filters a ChildList for items that support the specified language. This is
/// used in navigation controls or on landing or directory pages, to ignore all items that are not available in the
/// current language
/// </summary>
/// <param name="item">The set of children to filter</param>
/// <param name="language">The language for which to filter</param>
/// <returns>A collection of children that have versions in the current language, or null if none were available</returns>
public static IEnumerable<Sitecore.Data.Items.Item> FilterChildListByLanguage(Sitecore.Collections.ChildList list, String language)
{
if (null != list && null != language)
{
var items = list.Where(i => HasLanguageVersion(i, language)).ToList();
if (null != items && items.Any()) return items;
}
return null;
}
