利用DataSet的ReadXml轻松读取XML文件及Stream流

        string strxml = "<xml><m><a>1</a><b>2</b></m><m><a>11</a><b>22</b></m><m><a>111</a><b>222</b></m></xml>";
        
        DataSet ds = new DataSet();
        Stream stream = new MemoryStream(Encoding.Default.GetBytes(strxml));
        ds.ReadXml(stream);

        GridView1.DataSource = ds;
        GridView1.DataBind();

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataSet ds = new DataSet();
            TextReader reader = new StringReader(@"
                        <music>
                          <song>
                            <artist>The Chi-lites</artist>
                            <genre>Soul</genre>
                            <album>A lonely man</album>
                            <year>1972</year>
                          </song>
                          <song>
                            <artist>Babyface</artist>
                            <genre>R&B</genre>
                            <album>unknown</album>
                            <year></year>
                          </song>
                          <song>
                            <artist>Babyface</artist>
                            <genre>R&B</genre>
                            <album>The essential babyface</album>
                            <year>2001</year>
                          </song>
                          <song>
                            <artist>Babyface</artist>
                            <genre>R&B</genre>
                            <album>Grown and sexy</album>
                            <year>2005</year>
                          </song>
                          <song>
                            <artist>Maria Arredondo</artist>
                            <genre>Pop</genre>
                            <album>Not going under</album>
                            <year>2004</year>
                          </song>
                          <song>
                            <artist>Leona Lewis</artist>
                            <genre>Pop</genre>
                            <album>Unknown</album>
                            <year>2008</year>
                          </song>
                          <song>
                            <artist>Usher</artist>
                            <genre>R&B</genre>
                            <album>Usher</album>
                            <year>2008</year>
                          </song>
                          <song>
                            <artist>Christina Aguilera</artist>
                            <genre>Blues</genre>
                            <album>Back to basics</album>
                            <year>2004</year>
                          </song>
                          <song>
                            <artist>Sting</artist>
                            <genre>Pop</genre>
                            <album>Shape of my heart</album>
                            <year></year>
                          </song>
                        </music>
                        ");
            //读取Xml字符串 用来接收WebService返回数据
            ds.ReadXml(reader, XmlReadMode.Auto);

            //生成Xml文件
            //ds.WriteXml(Server.MapPath("xml/song_bak.xml"));
            GridView1.DataSource = ds;
            GridView1.DataBind();
        }
    }

    #region 接口返回的Xml转换成DataSet
    /// <summary>
    /// 返回的Xml转换成DataSet
    /// </summary>
    /// <param name="text">Xml字符</param>
    /// <returns></returns>
    private DataSet GetDataSet(string text)
    {
        try
        {
            XmlTextReader reader = new XmlTextReader(new StringReader(text));
            reader.WhitespaceHandling = WhitespaceHandling.None;
            DataSet ds = new DataSet();
            ds.ReadXml(reader);
            reader.Close();
            ds.Dispose();
            return ds;
        }
        catch
        {
            return null;
        }
    }
    #endregion


    #region 后台提交数据且获取接口返回的数据
    /// <summary>  
    /// 后台提交数据且获取接口返回的数据 
    /// </summary>  
    /// <param name="relativePath">地址</param>  
    /// <returns></returns>  
    public static string GetRequestString(string relativePath)
    {
        string requestUrl = relativePath;
        try
        {
            // 创建一个HTTP请求
            HttpWebRequest request = (System.Net.HttpWebRequest)WebRequest.Create(requestUrl);
            request.Method = "GET";

            StreamReader jsonStream = new StreamReader(request.GetResponse().GetResponseStream());
            string jsonObject = jsonStream.ReadToEnd();

            return jsonObject;
        }
        catch
        {
            return string.Empty;
        }
    }
    #endregion