System.Data.ProviderBase.AbstractDBConnection.ValidateBeginTransaction C# (CSharp) Method

		internal void ValidateBeginTransaction()
		{
			if (State != ConnectionState.Open) {
				throw new InvalidOperationException(String.Format("{0} requires an open and available Connection. The connection's current state is {1}.", new object[] {"BeginTransaction", State}));
			}

			if (!JdbcConnection.getAutoCommit()) {
				throw new System.InvalidOperationException("Parallel transactions are not supported.");
			}
		}

        public AbstractTransaction(
            IsolationLevel isolationLevel,
            AbstractDBConnection connection,
            String transactionName)
        {
			connection.ValidateBeginTransaction();
            _transactionName = transactionName;
            _connection = connection;
            _isolationLevel = isolationLevel;
            try
            {
                _connection.JdbcConnection.setAutoCommit(false);
                _connection.JdbcConnection.setTransactionIsolation(
                convertIsolationLevel(isolationLevel));
            }
            catch (SQLException exp)
            {
                throw new System.InvalidOperationException(exp.Message, exp);
            }
        }