asp.net获取xml属性的值两种方法

private string GetAttributename(string filename, string selNodeName, string attributename) { string value = string.Empty; XmlDocument doc = new XmlDocument(); doc.Load(Server.MapPath(filename));//第一种:可根据GetElementsByTagName(节点名称) // XmlElement root = doc.DocumentElement; //XmlNodeList nodelist = root.GetElementsByTagName(selNodeName);//第二种;获取当前xml文档 选中根节点的值selNodeName根节点名称 XmlNodeList nodelist = doc.SelectSingleNode(selNodeName).ChildNodes; foreach (XmlNode node in nodelist) { XmlElement xl = node as XmlElement; value = xl.GetAttribute(attributename).ToString(); } return value; }