/**//// <summary>
        /// 將DataSet物件資料儲存為XML檔案
        /// </summary>
        /// <param name="dt">DataSet</param>
        /// <param name="xmlFilePath">XML檔案路徑</param>
        /// <returns>bool值</returns>
        public static bool CDataToXmlFile(DataTable dt, string xmlFilePath)
        {
            if ((dt != null) && (!string.IsNullOrEmpty(xmlFilePath)))
            {
                string path = HttpContext.Current.Server.MapPath(xmlFilePath);
                MemoryStream ms = null;
                XmlTextWriter XmlWt = null;
                try
                {
                    ms = new MemoryStream();
                    //根據ms例項化XmlWt
                    XmlWt = new XmlTextWriter(ms, Encoding.Unicode);
                    //獲取ds中的資料
                    dt.WriteXml(XmlWt);
                    int count = (int)ms.Length;
                    byte[] temp = new byte[count];
                    ms.Seek(0, SeekOrigin.Begin);
                    ms.Read(temp, 0, count);
                    //返回Unicode編碼的文字
                    UnicodeEncoding ucode = new UnicodeEncoding();
                    //寫檔案
                    StreamWriter sw = new StreamWriter(path);
                    sw.WriteLine("<?xml version="1.0" encoding="utf-8"?>");
                    sw.WriteLine(ucode.GetString(temp).Trim());
                    sw.Close();
                    return true;
                }
                catch (System.Exception ex)
                {
                    throw ex;
                }
                finally
                {
                    //釋放資源
                    if (XmlWt != null)
                    {
                        XmlWt.Close();
                        ms.Close();
                        ms.Dispose();
                    }
                }
            }
            else
            {
                return false;
            }
        }
        /**//// <summary>
        /// 將DataSet物件中指定的Table轉換成XML檔案
        /// </summary>
        /// <param name="ds">DataSet物件</param>
        /// <param name="tableIndex">DataSet物件中的Table索引</param>
        /// <param name="xmlFilePath">xml檔案路徑</param>
        /// <returns>bool]值</returns>
        public static bool CDataToXmlFile(DataSet ds, int tableIndex, string xmlFilePath)
        {
            if (tableIndex != -1)
            {
                return CDataToXmlFile(ds.Tables[tableIndex], xmlFilePath);
            }
            else
            {
                return CDataToXmlFile(ds.Tables[0], xmlFilePath);
            }
        }
        /**//// <summary>
        /// 將DataSet物件轉換成XML檔案
        /// </summary>
        /// <param name="ds">DataSet物件</param>
        /// <param name="xmlFilePath">xml檔案路徑</param>
        /// <returns>bool]值</returns>
        public static bool CDataToXmlFile(DataSet ds, string xmlFilePath)
        {
            return CDataToXmlFile(ds, -1, xmlFilePath);
        }
        /**//// <summary>
        /// 將DataView物件轉換成XML檔案
        /// </summary>
        /// <param name="dv">DataView物件</param>
        /// <param name="xmlFilePath">xml檔案路徑</param>
        /// <returns>bool]值</returns>
        public static bool CDataToXmlFile(DataView dv, string xmlFilePath)
        {
            return CDataToXmlFile(dv.Table, xmlFilePath);
        }
    }