/// <summary> 
        /// 可以序列化為xml檔案儲存起來 
        /// </summary> 
        /// <param name="mydt">datatable(必須指定TableName,否則轉換失敗)</param> 
        /// <param name="Filename">指定XML檔名</param> 
        public static void DataTableToXml(DataTable mydt, string Filename)
        {
            mydt.WriteXml(Configuration.ApplicationPath + "\\" + Filename, XmlWriteMode.WriteSchema);
        }