/// <summary> /// /// </summary> /// <param name="strCnnConfig">ConnectionStrings索引</param> public void Open(String strCnnConfig) { if (m_oTransaction != null) { m_oTransaction.Rollback(); m_oTransaction.Dispose(); m_oTransaction = null; } if (m_cnn != null) { m_cnn.Close(); m_cnn.Dispose(); m_cnn = null; } m_cnn = SQLBase.CreateConnecion(strCnnConfig); m_cnn.Open(); m_oTransaction = m_cnn.BeginTransaction(); }