行 64:                    if (Cache["cha_c0"] == null)
行 65:                        {
行 66:                        ds.ReadXml("http://news./ns?rn=20&tn=newsrss&word=" + HttpContext.Current.Server.UrlEncode(s.my_city));
行 67:                        foreach (DataRow r in ds.Tables["item"].Rows)
行 68:                            {

[XmlException: 根级别上的数据无效。 行 1，位置 1。]
   System.Xml.XmlTextReaderImpl.Throw(Exception e) +76
   System.Xml.XmlTextReaderImpl.Throw(String res, String arg) +126
   System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace() +3984434
   System.Xml.XmlTextReaderImpl.ParseDocumentContent() +187
   System.Xml.XmlTextReaderImpl.Read() +151
   System.Xml.XmlTextReader.Read() +15
   System.Xml.XmlReader.MoveToContent() +64
   System.Data.DataSet.ReadXml(XmlReader reader, Boolean denyResolving) +306
   System.Data.DataSet.ReadXml(String fileName) +70
   cha_index.Page_Load(Object sender, EventArgs e) in d:\wwwroot\jindianzi\cha\index.aspx.cs:66
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627