XDocument xtest = XDocument.Load(Server.MapPath ("XMLFile.xml"));
        var x = from s in xtest.Root.Elements("Ad")
                select new
                {
                    ImageUrl = s.Attribute("ImageUrl").Value,
                    NavigateUrl = s.Attribute("NavigateUrl").Value,
                    AlternateText = s.Attribute("AlternateText").Value,
                    Keyword = s.Attribute("Keyword").Value,
                    Impression = s.Attribute("Impression").Value
                };