XmlTextReader問題

Question

我試圖解析這個XML，但C＃一直拋出一個異常，說它有無效的字符。我無法直接從消息框中複製文本，因此我已經對其進行了篩選。

http://img29.imageshack.us/img29/694/xmler.jpg

編輯：複製的文本

<?xml version="1.0" encoding="UTF-8"?><user><id>9572</id><screen_name>fgfdgfdgfdgffg44</screen_name></user> 

下面的代碼來獲取字符串

string strRetPage = System.Text.Encoding.GetEncoding(1251).GetString(RecvBytes, 0, bytes); 

while (bytes > 0) 
{ 
    bytes = socket.Receive(RecvBytes, RecvBytes.Length, 0); 
    strRetPage = strRetPage + System.Text.Encoding.GetEncoding(1251).GetString(RecvBytes, 0, bytes); 
} 
start = strRetPage.IndexOf("<?xml"); 
string servReply = strRetPage.Substring(start); 
servReply = servReply.Trim(); 
servReply = servReply.Replace("\r", ""); 
servReply = servReply.Replace("\n", ""); 
servReply = servReply.Replace("\t", ""); 

XmlTextReader txtRdr = new XmlTextReader(servReply); 

Answer 1

的XmlTextReader的期待包含XML而不是XML本身作爲一個網址串。要使用XmlTextReader解析XML，您必須創建一個流並將其提供給XmlTextReader

using (StringReader stringReader = new StringReader(servReply)) 
{ 
    using (XmlTextReader xmlTextReader = new XmlTextReader(stringReader)) 
    { 
     // Read the xml 
    } 
}