nature_net.user_controls.signup.ValidateString C# (CSharp) Метод

        public bool ValidateString(string s)
        {
            if (focused_textbox.Name == "textbox_name")
            {
                if (valid_name_string.Contains(s.ToLower()))
                    return true;
                return false;
            }
            if (focused_textbox.Name == "textbox_email")
            {
                if (valid_email_string.Contains(s.ToLower()))
                    return true;
                return false;
            }
            return false;
        }