C#檢驗參數合法性公用方法

#region 檢驗參數合法性，數值類型不小於0，引用類型不能為null，否則拋出異常
        /// <summary>
        /// 檢驗參數合法性，數值類型不小於0，引用類型不能為null，否則拋出異常
        /// </summary>
        /// <param name="arg">待檢參數</param>
        /// <param name="argName">待檢參數名稱</param>
        /// <param name="canZero">數值類型是否可以為0</param>
        public static bool CheckArgument(object arg, string argName, bool canZero = false)
        {
            ILog log = LogManager.GetLogger(String.Format("CheckArgument_{0}", argName));
            try
            {
                if (arg == null)
                {
                    ArgumentNullException argumentNullException = new ArgumentNullException(argName);
                    throw new Exception(String.Format("參數{0}為空，引發異常", argName), argumentNullException);
                }

                Type t = arg.GetType();
                if (t.IsValueType && t.IsNumeric())
                {
                    bool flag = !canZero ? arg.CastTo(0.0) <= 0.0 : arg.CastTo(0.0) < 0.0;
                    if (flag)
                    {
                        ArgumentOutOfRangeException argumentOutOfRangeException = new ArgumentOutOfRangeException(argName);
                        throw new Exception(String.Format("參數{0}不在有效范圍內，引發異常", argName), argumentOutOfRangeException);
                    }
                }
                if (t == typeof(Guid) && (Guid)arg == Guid.Empty)
                {
                    ArgumentNullException argumentNullException1 = new ArgumentNullException(argName);
                    throw new Exception(String.Format("參數{0}為空引發GUID異常", argName), argumentNullException1);
                }

                return true;
            }
            catch (Exception exception)
            {
                log.Error("檢驗參數合法性", exception);
            }
            return false;
        }
        #endregion