I got a solution. Not very neat but its working for me.
iCalendar calendar = new iCalendar();
calendar.Method = "PUBLISH";
Event evt = calendar.Create<Event>();
var attendes = new List<IAttendee>();
//required attendee
IAttendee attendee1 = new DDay.iCal.Attendee("MAILTO:[email protected]")
{
CommonName = "Naveen Jose",
Role = "REQ-PARTICIPANT"
};
attendes.Add(attendee1);
//optional attendee
IAttendee attendee2 = new DDay.iCal.Attendee("MAILTO:[email protected]")
{
CommonName = "Noah Naveen",
Role = "OPT-PARTICIPANT"
};
attendes.Add(attendee2);
if (attendes != null && attendes.Count > 0)
{
evt.Attendees = attendes;
}