ASP.NET从网站读取外部XML

数据看起来像这样

<profile> 
    <steamID64>76561197967256555</steamID64> 
    <steamID><![CDATA[snivfbo]]></steamID> 
    <onlineState>offline</onlineState> 
    <stateMessage><![CDATA[]]></stateMessage> 
    <privacyState>private</privacyState> 
    <visibilityState>1</visibilityState> 
    <avatarIcon><![CDATA[http://media.steampowered.com/steamcommunity/public/images/avatars/9d/9d13f8f8061b7adaa9e9c2766e2bb2b3d82f911c.jpg]]></avatarIcon> 
    <avatarMedium><![CDATA[http://media.steampowered.com/steamcommunity/public/images/avatars/9d/9d13f8f8061b7adaa9e9c2766e2bb2b3d82f911c_medium.jpg]]></avatarMedium> 
    <avatarFull><![CDATA[http://media.steampowered.com/steamcommunity/public/images/avatars/9d/9d13f8f8061b7adaa9e9c2766e2bb2b3d82f911c_full.jpg]]></avatarFull> 
    <vacBanned>0</vacBanned> 
    <isLimitedAccount>0</isLimitedAccount> 
</profile>

而我只是希望能够访问这些值.我对XmlTextReaders的了解有限,这让我无处可去.谢谢.

XDocument doc = XDocument.Load("http://steamcommunity.com/profiles/76561197967256555/?xml=1");
        string steamID64 = doc.Root.Descendants("steamID64").First().Value;
        string steamID = doc.Root.Descendants("steamID").First().Value;
        string onlineState = doc.Root.Descendants("onlineState").First().Value;
        string stateMessage = doc.Root.Descendants("stateMessage").First().Value;
        string privacyState = doc.Root.Descendants("privacyState").First().Value;
        string visibilityState = doc.Root.Descendants("visibilityState").First().Value;
        string avatarIcon = doc.Root.Descendants("avatarIcon").First().Value;
        string avatarMedium = doc.Root.Descendants("avatarMedium").First().Value;
        string avatarFull = doc.Root.Descendants("avatarFull").First().Value;
        string vacBanned = doc.Root.Descendants("vacBanned").First().Value;
        string isLimitedAccount = doc.Root.Descendants("isLimitedAccount").First().Value;