System.Xml.XmlReader.ReadElementContentAsDouble C# (CSharp) Method

        public virtual double ReadElementContentAsDouble()
        {
            if (SetupReadElementContentAsXxx("ReadElementContentAsDouble"))
            {
                double value = ReadContentAsDouble();
                FinishReadElementContentAsXxx();
                return value;
            }
            return XmlConvert.ToDouble(string.Empty);
        }

 internal override void ProcessXmlCore (XmlReader reader)
 {
     switch (reader.Name) {
     case "duration":
         duration = TimeSpan.FromMilliseconds (reader.ReadElementContentAsDouble ());
         break;
     case "release-list":
         if (reader.ReadToDescendant ("release")) {
             List<Release> releases = new List<Release> ();
             do releases.Add (new Release (reader.ReadSubtree ()));
             while (reader.ReadToNextSibling ("release"));
             this.releases = releases.AsReadOnly ();
         }
         break;
     case "puid-list":
         if (reader.ReadToDescendant ("puid")) {
             List<string> puids = new List<string> ();
             do puids.Add (reader["id"]);
             while (reader.ReadToNextSibling ("puid"));
             this.puids = puids.AsReadOnly ();
         }
         break;
     default:
         base.ProcessXmlCore (reader);
         break;
     }
 }