public string RegisterUser(string username, string password, string email)
        {
            JSonResult result = new JSonResult();
            result.Status = false;

            Users obj = new Users();
            bool userCreated = obj.CreateNewUser(username, password);

            Guid guid;
            obj.GetUserGuid(username, out guid);

            bool isUserValid = obj.CheckUserAndPasswordValid(username, password);

            SignedInUser user = new SignedInUser();
            if (isUserValid)
            {
                user.SignedInUserId = guid.ToString();
                user.SignedInUserName = username;
                user.Status = "true";
            }
            else { user.Status = "false"; }

            result.Status = true;
            bool st = true;
            JavaScriptSerializer serializer = new JavaScriptSerializer();
            string jsonresult = serializer.Serialize(user);

            return jsonresult;
        }