IsPrimitiveType

        internal static bool IsPrimitiveType(Type type)
        {
            if ((type == typeof(string)) ||
                (type == typeof(bool)) ||
                (type == typeof(byte)) ||
                (type == typeof(char)) ||
                (type == typeof(DateTime)) ||
                (type == typeof(decimal)) ||
                (type == typeof(double)) ||
                (type == typeof(Guid)) ||
                (type == typeof(short)) ||
                (type == typeof(int)) ||
                (type == typeof(long)) ||
                (type == typeof(sbyte)) ||
                (type == typeof(float)) ||
                (type == typeof(TimeSpan)) ||
                (type == typeof(ushort)) ||
                (type == typeof(uint)) ||
                (type == typeof(ulong)))
                return true;
            else
                return false;
        }