将xml文件转换为DataSet

        /// <summary>
        /// 将xml文件转换为DataSet
        /// </summary>
        /// <param name="xmlFile"></param>
        /// <returns></returns>
        public  DataSet ConvertXMLFileToDataSet(string xmlFile)
        {
            StringReader stream = null;
            XmlTextReader reader = null;
            try
            {
                XmlDocument xmld = new XmlDocument();
                xmld.Load(xmlFile);

                DataSet xmlDS = new DataSet();
                stream = new StringReader(xmld.InnerXml);
                //从stream装载到XmlTextReader
                reader = new XmlTextReader(stream);
                xmlDS.ReadXml(reader);
                //xmlDS.ReadXml(xmlFile);
                return xmlDS;
            }
            catch (System.Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (reader != null) reader.Close();
            }
        }