Generate X12 GS

How to generate X12 GS ?

The full sample is available for download here.

/// 
 /// Build GS.
 /// 
 public static GS BuildGs(string controlNumber, 
	string senderId = "SENDER1", 
	string receiverId = "RECEIVER1")
 {
	return new GS
	{
		//  Functional ID Code
		CodeIdentifyingInformationType_1 = "IN",
		//  Application Senders Code
		SenderIDCode_2 = senderId,
		//  Application Receivers Code
		ReceiverIDCode_3 = receiverId,
		//  Date
		Date_4 = DateTime.Now.Date.ToString("yyMMdd"),
		//  Time
		Time_5 = DateTime.Now.TimeOfDay.ToString("hhmm"),
		//  Group Control Number
		//  Must be unique to both partners for this interchange
		GroupControlNumber_6 = controlNumber.PadLeft(9, '0'),
		//  Responsible Agency Code
		TransactionTypeCode_7 = "X",
		//  Version/Release/Industry id code
		VersionAndRelease_8 = "004010"
	};
 }