HospitalConnectedLayer.HospitalDAL.OpenConnection C# (CSharp) Method

        private void OpenConnection()
        {
            try
            {
                _sqlConnection.Open();
                //LOGGING
                Logger.Info("Sql connection was opened");
            }
            catch (Exception ex)
            {
                CloseConnection();
                //LOGGING
                Logger.Error("Can't load data storage!",ex);
                throw new InvalidOperationException("Can't load data storage!");
            }
        }