.net读XML(精简代码)

看到前辈的一段读xml并绑定的代码，写得实在精简，贴上来以供学习。
#region 绑定声音文件
   string soundDef = Server.MapPath(Request.ApplicationPath + "/Sound/SoundConfig.xml");
   DataSet dsSound = new DataSet();
   dsSound.ReadXml(soundDef,System.Data.XmlReadMode.Auto);
   DataTable dt = new DataTable();
   if(dsSound.Tables.Count > 0)
   {
    dt = dsSound.Tables[0];
   }   
   if(dt.Rows.Count > 0)
   {
    DataView dv = dt.DefaultView;
    dv.RowFilter = "enalbe <> 'false'";

    drpSound.DataSource = dv;
    drpSound.DataTextField = "fileName";
    drpSound.DataValueField = "fileName";
    drpSound.DataBind();
   }
   #endregion