public static bool Evalue(string query)
        {
            ConnectionMySQL.Connect();
            MySqlCommand    command = new MySqlCommand(query, ConnectionMySQL.GetConnection());
            MySqlDataReader readerm = command.ExecuteReader();
            bool            flag    = false;

            while (readerm.Read())
            {
                flag = true;
            }
            ConnectionMySQL.Disconnect();
            return(flag);
        }
        public static string GetInternCode()
        {
            ConnectionMySQL.Connect();
            string          query       = "select max(abs(intern_code)) from authorizations";
            MySqlCommand    command     = new MySqlCommand(query, ConnectionMySQL.GetConnection());
            MySqlDataReader readerm     = command.ExecuteReader();
            string          intern_code = "0";

            while (readerm.Read())
            {
                string valor = readerm.GetValue(0).ToString();
                if (valor == "0" || valor == null || valor == "" || Convert.ToInt32(valor) <= 15000)
                {
                    intern_code = "15001";
                }
                else
                {
                    intern_code = (Convert.ToInt32(valor) + 1).ToString();
                }
            }
            ConnectionMySQL.Disconnect();
            return(intern_code);
        }
        public static string GetClinicHistoryCode()
        {
            ConnectionMySQL.Connect();
            string          query               = "select max(abs(clinic_history_code)) from patients";
            MySqlCommand    command             = new MySqlCommand(query, ConnectionMySQL.GetConnection());
            MySqlDataReader readerm             = command.ExecuteReader();
            string          clinic_history_code = "0";

            while (readerm.Read())
            {
                string valor = readerm.GetValue(0).ToString();
                if (valor == "0" || valor == null || valor == "" || Convert.ToInt32(valor) <= 5000)
                {
                    clinic_history_code = "5001";
                }
                else
                {
                    clinic_history_code = (Convert.ToInt32(valor) + 1).ToString();
                }
            }
            ConnectionMySQL.Disconnect();
            return(clinic_history_code);
        }