System.Xml.Serialization.TypeScope.GetArrayElementType C# (CSharp) Method

        internal static Type GetArrayElementType(Type type, string memberInfo)
        {
            if (type.IsArray)
                return type.GetElementType();
            else if (IsArraySegment(type))
                return null;
            else if (typeof(ICollection).IsAssignableFrom(type))
                return GetCollectionElementType(type, memberInfo);
            else if (typeof(IEnumerable).IsAssignableFrom(type))
            {
                TypeFlags flags = TypeFlags.None;
                return GetEnumeratorElementType(type, ref flags);
            }
            else
                return null;
        }