Asp.net 读取XML文件中每个节点的数据。

[jwy0126]

XML文件：
<?xml version="1.0" encoding="UTF-8"?>
<!--聊天记录-->
<Root>
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>你是谁？</p>" SendTime="2009-3-3 11:08:06" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>不知道啊</p>" SendTime="2009-3-3 11:08:42" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>不清楚</p>" SendTime="2009-3-3 11:09:00" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>还是不知道</p>" SendTime="2009-3-3 11:09:05" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>慢慢想哦</p>" SendTime="2009-3-3 11:09:23" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>再相会</p>" SendTime="2009-3-3 11:09:29" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>天气晴了哦</p>" SendTime="2009-3-3 11:09:39" />
<Record Id="2009" SenderName="Administrator" ReceiverName="QQ" Msg="<p>哈哈哈哈哈哈哈哈</p>" SendTime="2009-3-3 11:10:20" />
<Record Id="2009" SenderName="Administrator" ReceiverName="所有人" Msg="<p>dsdsds</p>" SendTime="2009-3-3 11:32:04" />
</Root>
上面是我的XML文件，现在我想读取<Record></Record>这个节点下的每个字段的数据，如'Id','SenderName','ReceiverName'等等。请问该怎么读取到呢？
我最后是要把读取到的数据 拼接成一个字符串显示在DIV中。

[jwy0126]

/// <summary>
/// 读取XML文件
/// </summary>
private void ReadXml()
{
string url = Server.MapPath("~/XML/ChatRecord.xml");
StreamReader reader = new StreamReader(url, System.Text.Encoding.GetEncoding("GB2312"));

//操作XML
XmlDataDocument datadoc = new XmlDataDocument();
datadoc.DataSet.ReadXml(reader);
//msgBuffer是DIV的ID
msgBuffer.InnerHtml= datadoc.DataSet.Tables[0].DefaultView.ToString();

datadoc = null;//清空对XML数据的操作
reader.Close();//关闭字节流的读取
}

[jwy0126]

msgBuffer.InnerHtml= datadoc.DataSet.GetXml();取出了所有的XML信息。

[linhl]

XmlDocument doc = new XmlDocument();
doc.Load("a.xml");
XmlNode node = doc.SelectSingleNode("Root");
XmlNodeList nodelist = node.ChildNodes;
foreach(XmlNode xn in nodelist)
{
	XmlElement xe = (XmlElement)xn;
	string Id = xe.GetAttribute("Id");
	string SenderName = xe.GetAttribute("SenderName");
	string ReceiverName = xe.GetAttribute("ReceiverName");
}