收到的XML转成dataset型

 /// <summary>
        /// 收到的XML转成dataset型
        /// </summary>
        /// <param name="xmlData"></param>
        /// <returns></returns>
        public DataSet ConvertXMLToDataSet(string xmlData)
        {
            StringReader stream = null;
            XmlTextReader reader = null;
            try
            {
                DataSet xmlDS = new DataSet();
                stream = new StringReader(xmlData);
                reader = new XmlTextReader(stream);
                xmlDS.ReadXml(reader);
                return xmlDS;
            }
            catch (Exception ex)
            {
                string strTest = ex.Message;
                return null;
            }