private void EnsureProperties()
{
if (string.IsNullOrEmpty(UID))
{
// Create a new UID for the component
UID = new UIDFactory().Build();
}
if (!Properties.ContainsKey("SEQUENCE"))
{
Sequence = 0;
}
if (Created == null)
{
// Here, we don't simply set to DateTime.Now because DateTime.Now contains milliseconds, and
// the iCalendar standard doesn't care at all about milliseconds. Therefore, when comparing
// two calendars, one generated, and one loaded from file, they may be functionally identical,
// but be determined to be different due to millisecond differences.
DateTime now = DateTime.Now;
Created = new iCalDateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute, now.Second);
}
if (DTStamp == null)
{
DTStamp = Created.Copy <IDateTime>();
}
}