Select XElement where child element has a value

Question

Given the following XML:

  
    1
    2.99
  


        

Answer 1

XDocument xPlatformXml = new XDocument();
XElement xel = xPlatformXml.Element("platforms")
                           .Elements("platform")
                           .Where(x => x.Element("id").Value == "1")
                           .SingleOrDefault();

Or using XElement to int conversion:

XDocument xPlatformXml = new XDocument();
XElement xel = xPlatformXml.Element("platforms")
                           .Elements("platform")
                           .Where(x => (int)x.Element("id") == 1)
                           .SingleOrDefault();