Generate X12 ISA Last updated: 2023-04-24

///
/// Build ISA.
///
public static ISA BuildIsa(string controlNumber,
	string senderId = "SENDER1",
	string senderQ = "14",
	string receiverId = "RECEIVER1",
	string receiverQ = "16",
	string ackRequested = "1",
	string testIndicator = "T")
{
	return new ISA
	{
		//  Authorization Information Qualifier
		AuthorizationInformationQualifier_1 = "00",
		//  Authorization Information
		AuthorizationInformation_2 = "".PadRight(10),
		//  Security Information Qualifier
		SecurityInformationQualifier_3 = "00",
		//  Security Information
		SecurityInformation_4 = "".PadRight(10),
		//  Interchange ID Qualifier
		SenderIDQualifier_5 = senderQ,
		//  Interchange Sender
		InterchangeSenderID_6 = senderId.PadRight(15),
		//  Interchange ID Qualifier
		ReceiverIDQualifier_7 = receiverQ,
		//  Interchange Receiver
		InterchangeReceiverID_8 = receiverId.PadRight(15),
		//  Date
		InterchangeDate_9 = DateTime.Now.Date.ToString("yyMMdd"),
		//  Time
		InterchangeTime_10 = DateTime.Now.TimeOfDay.ToString("hhmm"),
		//  Standard identifier
		InterchangeControlStandardsIdentifier_11 = "U",
		//  Interchange Version ID
		//  This is the ISA version and not the transaction sets versions
		InterchangeControlVersionNumber_12 = "00204",
		//  Interchange Control Number
		InterchangeControlNumber_13 = controlNumber.PadLeft(9, '0'),
		//  Acknowledgment Requested (0 or 1)
		AcknowledgementRequested_14 = ackRequested,
		//  Test Indicator
		UsageIndicator_15 = testIndicator,
	};
}