db.Database.Dispose C# (CSharp) Method

        public void Dispose()
        {
            _con.Close();
        }

        public void HandleRequest(HttpListenerContext context)
        {
            NameValueCollection query;
            using (var rdr = new StreamReader(context.Request.InputStream))
                query = HttpUtility.ParseQueryString(rdr.ReadToEnd());

            using (var db = new Database())
            {
                Account acc = db.Verify(query["guid"], query["password"]);
                if (acc == null)
                {
                    byte[] status = Encoding.UTF8.GetBytes("<Error>Wrong Username or Password</Error>");
                    context.Response.OutputStream.Write(status, 0, status.Length);
                }
                else
                {
                    var serializer = new XmlSerializer(acc.GetType(),
                        new XmlRootAttribute(acc.GetType().Name) {Namespace = ""});

                    var xws = new XmlWriterSettings();
                    xws.OmitXmlDeclaration = true;
                    xws.Encoding = Encoding.UTF8;
                    XmlWriter xtw = XmlWriter.Create(context.Response.OutputStream, xws);
                    serializer.Serialize(xtw, acc, acc.Namespaces);
                }
                db.Dispose();
            }
        }