Recurrance Calendar Issue in Lotus Notes

I am creating a Daily Reccurrance pattern in calendar items. But there is a issue as before clicking "save and Send Invitations" button, but in the Document Properties field i am able to view the RepeatFo开发者_开发百科rUnit and based on its value i am identifying the Reccurrance type like (D: for daily, W: for Weekly, M: for montlhy etc).

But, After clicking on the "save and Send Invitations" button, the Recurrance is getting saved but after that, i am unable to get the RepeatForUnit field in Document Properties.

Kindly help me, how to identify the Reccurrance type and the related fields.

Note: I am using Domino.dll using C#.

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Preeti (who asked this question) also asked a very similar question here: "RepeatForUnit" item missing in Calendar entry?

I've experienced the same problem with a Java app: the RepeatForUnit, RepeatUntil, RepeatHow, and other "repeat" fields are not present when I inspect the calendar document.

The answer to the linked question is probably correct: Notes is treating the entry as a custom repeating entry so the "repeat" fields are not present. That's a bummer because I want to use the "repeat" fields to build a corresponding iCal entry.