/// <summary>
/// Returns a value indicating whether a collection is read-only.
/// </summary>
/// <param name="collection">The collection to examine.</param>
/// <returns>A value indicating whether a collection is read-only.</returns>
public static bool IsReadOnly(this IEnumerable collection)
{
return
(collection.GetType().IsArray ||
CollectionExtensions
.Iterate(collection.GetType(), type => type.BaseType)
.TakeWhile(type => type != null)
.Any(type => type.FullName.StartsWith("System.Collections.ObjectModel.ReadOnlyCollection`1", StringComparison.Ordinal)));
}