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var newFilename = filename.Replace("..", "").ValidFilenameCharacters();

        static System.Security.Cryptography.RandomNumberGenerator RandomNumberGenerator = null;



        /// <summary>

        /// 回傳大於等於 0 小於 1

        /// </summary>

        /// <returns></returns>

        public static double NextDouble()

        {

            if (RandomNumberGenerator == null || LastRandomGenerateTime < DateTime.Now.AddMinutes(-1))

            {

                RandomNumberGenerator = System.Security.Cryptography.RandomNumberGenerator.Create();

            }



            // Generate four random bytes

            byte[] four_bytes = new byte[4];

            RandomNumberGenerator.GetBytes(four_bytes);



            // Convert the bytes to a UInt32

            uint scale = BitConverter.ToUInt32(four_bytes, 0);



            // And use that to pick a random number >= min and < max

            // 0 <= (scale / (uint.MaxValue + 1.0)) < 1

            return scale / (uint.MaxValue + 1.0);

        }



        /// <summary>

        /// 回傳值介於 min ~ (max - 1)

        /// </summary>

        /// <param name="min"></param>

        /// <param name="max"></param>

        /// <returns></returns>

        public static int GetRandomInt(int min, int max)

        {

            if(max < min)

            {

                throw new Exception("最大值不可小於最小值");

            }



            // Generate four random bytes

            byte[] four_bytes = new byte[4];

            RandomNumberGenerator.GetBytes(four_bytes);



            // And use that to pick a random number >= min and < max

            return (int)(min + (max - min) * NextDouble()); //因為 NextDouble 會小於 1，所以用無條件捨去.

        }



        /// <summary>

        /// 產生 0 ~ (max - 1) 的亂數

        /// </summary>

        /// <param name="max"></param>

        /// <returns></returns>

        public static int GetRandomInt(int max)

        {

            return GetRandomInt(0, max);

        }



        /// <summary>

        /// 產生 0 ~ (int.MaxValue - 1) 的亂數

        /// </summary>

        /// <returns></returns>

        public static int GetRandomInt()

        {

            return GetRandomInt(int.MaxValue);

        }

        string EndDate = Request["EndDate"];



        DataTable qtyControls = U2.SQL.DTFromSQL("Select YA00, PD00 from QtyControl Where EndDate > '" + EndDate + "' and SoldQty >= InitQty");



        var values = qtyControls.AsEnumerable().Select(r => "('" + r.Field<string>("YA00") + "','" + r.Field<string>("PD00") + "')").ToList();



        var sqls = new List<string>();

        sqls.Add("Delete StopSaleYAP;");



        int start = 0;        

        while(start < values.Count)

        {

            var end = start + 999;

            if(end > values.Count - 1)

            {

                end = values.Count;

            }



            sqls.Add("insert into StopSaleYAP(YA00, PD00) Values" + string.Join(",", values.GetRange(start, end)) + ";");



            start = end + 1;

        }



        U2.SQL.ExecuteSQL(string.Join("\r\n", sqls));

        public static bool IsErrorOrder(Order.Input.CheckValidOrder dto)

        {

            if (dto.OrderNos == null || dto.OrderNos.Count == 0)

            {

                return false;

            }



            var orderCount = dto.OrderNos.Count();

            var orders = NpreoOrderMain.GetList(dto.OrderNos);

            if (orders.Count != orderCount || !dto.OrderNos.Any(x => orders.Select(o => o.Order_No).Contains(x)))

            {

                return true;

            }

            return false;

        }

        var fu = Request.Files[0];

        fu.SaveAs(Server.MapPath("UploadFiles/") + fu.FileName);