public responseCls loginForm(loginCls expositions)
        {
            var emp = from e in entities.Logins
                      where e.userName == expositions.userName && e.password == expositions.password
                      select e;


            responseCls res = new responseCls();

            if (emp.Count() > 0)
            {
                res.status  = 200;
                res.success = "successfully logged in";
                var firstOne = emp.First();

                dataCls d = new dataCls();
                d.userName = firstOne.userName;
                res.value  = d;
            }
            else
            {
                res.status  = 400;
                res.success = "invalid username or password";
            }

            return(res);
        }
        public responseCls loginFormOption(loginCls expositions)
        {
            responseCls res = new responseCls();

            res.status  = 400;
            res.success = "successfully sign up";

            return(res);
        }