我正在尝试使用XDocument.Parse来解析xml数据wchich抛出NotSupportedException,就像在主题:Is XDocument.Parse different in Windows Phone 7?中一样,我根据发布的建议更新了我的代码,但它仍然无济于事。前段时间我使用类似(但更简单)的方法解析RSS,并且工作得很好。
public void sList()
{
WebClient client = new WebClient();
client.Encoding = Encoding.UTF8;
string url = "http://eztv.it";
Uri u = new Uri(url);
client.DownloadStringAsync(u);
client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted);
}
private void client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
try
{
string s = e.Result;
s = cut(s);
XmlReaderSettings settings = new XmlReaderSettings();
settings.DtdProcessing = DtdProcessing.Ignore;
XDocument document = null;// XDocument.Parse(s);//Load(s);
using (XmlReader reader = XmlReader.Create(new StringReader(e.Result), settings))
{
document = XDocument.Load(reader); // error thrown here
}
// ... rest of code
}
catch (Exception ex)
{
MessageBox.Show( ex.Message);
}
}
string cut(string s)
{
int iod = s.IndexOf("<select name=\"SearchString\">");
int ido = s.LastIndexOf("</select>");
s = s.Substring(iod, ido - iod + 9);
return s;
}
当我用字符串s代替
时//string s = "<select name=\"SearchString\"><option value=\"308\">10 Things I Hate About You</option><option value=\"539\">2 Broke Girls</option></select>";
一切正常,没有异常,所以我做错了什么?
答案 0 :(得分:6)
有像'&amp;'这样的特殊符号在e.Result
。
我只是尝试用HttpUtility.HtmlEncode()
替换此符号(除了'&lt;','&gt;','“之外的所有符号)并解析XDocument
UPD:
我不想展示我的代码,但是你没有给我任何机会:)
string y = "";
for (int i = 0; i < s.Length; i++)
{
if (s[i] == '<' || s[i] == '>' || s[i] == '"')
{
y += s[i];
}
else
{
y += HttpUtility.HtmlEncode(s[i].ToString());
}
}
XDocument document = XDocument.Parse(y);
var options = (from option in document.Descendants("option")
select option.Value).ToList();
在WP7上它对我有用。 请不要将此代码用于html转换。我为了测试目的而快速写了它