asp.net使用DataSet的ReadXml读取XML文件及Stream流的方法

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