[Solved] Extract recurrence dates - why won't this work?

[Paul Nascimento]

I'm trying to take a recurrence rule string that the scheduler put in my DB, and extract a list of dates from it. I found an example, but it doesn't work. rrule always returns null. Ultimately I just need a list of dates. Thanks

//this was generated by the scheduler, and I coped it to here from the DB
string ruleString = "DTSTART:20100504T000000Z  DTEND:20100505T000000Z  RRULE:FREQ=WEEKLY;COUNT=2;INTERVAL=1;BYDAY=TU";

RecurrenceRule rrule;
RecurrenceRule.TryParse(ruleString, out rrule);
if (rrule == null)
{
    return;
}

DateTime test;
foreach (DateTime occurrence in rrule.Occurrences)
{
    //do something with each date...
}

[T. Tsonev]

Hi Paul,

The fields must be on new lines in order for the parsing to work. For example:

string ruleString = "DTSTART:20100504T000000Z\r\nDTEND:20100505T000000Z\r\nRRULE:FREQ=WEEKLY;COUNT=2;INTERVAL=1;BYDAY=TU";

I hope this helps.

All the best,
Tsvetomir Tsonev
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[Paul Nascimento]

Well that got me 2 lines further : )

Now it's giving an error at 

RecurrenceRule.TryParse(ruleString, out rrule);

It's giving the old "Object reference not set to an instance of an object" error.

Should I have done something other than just "RecurrenceRule rrule;" ? Should I have initialized it somehow?

[Paul Nascimento]

Never mind, I had a typo in my code.
I put \r\r in for one of my new lines instead of \r\n. It works fine now.

Thanks again.