public string User_Insert(string username, string password)
        {
            modules.encryption enc = new modules.encryption();
            byte[]             ePassword;
            ePassword = enc.Encrypt(password);


            string[] qArr = login.Insert(username, ePassword);
            if (qArr[0] == "0")
            {
                //ErrorNumber of 0 -- insert successful
                return(qArr[1]);
            }
            else
            {
                return("Error occurred: " + qArr[1]);
            }
        }
        public List <string> User_Login(string username, string password, Int64 companyID)
        {
            modules.encryption enc = new modules.encryption();
            byte[]             ePassword;
            ePassword = enc.Encrypt(password);


            string[] qArr = login.Login(username, ePassword, companyID);

            List <String> uArr = new List <string>();

            uArr.Add(qArr[0]);
            uArr.Add(qArr[1]);
            if (qArr[0] == "0")
            {
                uArr.Add("false"); //if the userID is 0, it means there is no such user
            }
            else
            {
                uArr.Add("true"); //if the userID is > 0, it means user was authenticated
            }

            return(uArr);
        }