C# 验证数字

/// <summary>
        /// 验证数字
        /// </summary>
        /// <param name="number">数字内容</param>
        /// <returns>true 验证成功 false 验证失败</returns>
        public bool CheckNumber(string number)
        {
            if (string.IsNullOrEmpty(number))
            {
                return false;
            }
            Regex regex = new Regex(@"^(-)?\d+(\.\d+)?$");
            if (regex.IsMatch(number))
            {
                return true;
            }
            else
            {
                return false;
            }
        }