Npgsql.NpgsqlConnection.CheckConnectionOpen C# (CSharp) Method

        private void CheckConnectionOpen()
        {
            if (disposed)
            {
                throw new ObjectDisposedException(CLASSNAME);
            }

            if (_fakingOpen)
            {
                if (connector != null)
                {
                    try
                    {
                        Close();
                    }
                    catch
                    {
                    }
                }
                Open();
                _fakingOpen = false;
            }

            if (_postponingClose || connector == null)
            {
                throw new InvalidOperationException(resman.GetString("Exception_ConnNotOpen"));
            }
        }