public class POSUser
    {
        public int userid { get; protected set; }
        public int storeid { get; protected set; }
        public string emailaddress { get; protected set; }
        public string password { get; protected set; }
        public string role { get; protected set; }

        public imajposEntities ie = new imajposEntities(); // this is the DbContext

        public POSUser()
        {

        }
        public POSUser(int UserID)
        {
            userid = UserID;
        }
        public POSUser(string EmailAddress, string Password)
        {
            emailaddress = EmailAddress;
            password = Password;
        }

        public POSUser Login()
        {
            var user = (from u in ie.users
                        where u.emailaddress == emailaddress && u.password == password
                        select u).FirstOrDefault();

            POSUser result = new POSUser();

            if (user != null)
            {
                result.userid = user.userid;
                result.storeid = user.storeid;
                result.emailaddress = user.emailaddress;
                result.password = user.password;
                result.role = user.role;
            }

            return result;
        }
}