WP7 读取Properties中的xml文件

 public static string GetManifestAttribute(string elementName, string attributeName)
        {
            string ret = null;
            try
            {
                var settings = new XmlReaderSettings { XmlResolver = new XmlXapResolver() };
                const string manifestName = "WMAppManifest.xml";
                //const string appNodeName = "App";
                using (var rdr = XmlReader.Create(manifestName, settings))
                {
                    rdr.ReadToDescendant(elementName);
                    if (!rdr.IsStartElement())
                    {
                        throw new FormatException(manifestName + " is missing " + elementName);
                    }

                    ret = rdr.GetAttribute(attributeName);
                }
            }
            catch (Exception ex)
            {
                throw(ex);

            }

            return ret;
        }