Hi,
I'm maintaining a .Net application that makes use of the Google Calendar API
to visualize bookings and events. It uses multiple calendars to organize
different categories of events, and all those calendars are contained under
the same google user account.
Since the beginning or April, the HTTP 500 Internal Server Error has reared
its ugly head many a time when trying to update information about events.
Currently, Google Calendar fails us more than it comes through. While
searching the web for solutions, I read a post that suggested that too much
activity on an account could cause it to lock down and become "read only".
That explanation doesn't make sense to me, though, since I'm still able to
run unit tests that are consistently successful when adding new events to a
calendar, but then provoke the error, not only when trying to update or
delete an event, but also when merely querying an event by its EventId (this
should be possible even if the account is read-only, no?).
The following are examples of code that prompt this error.
EXAMPLE 1:
string eventUri =
string.Format("http://www.google.com/calendar/feeds/{0}/private/full/{1}";,
calendarId, eventId);
AtomEntry entry = Service.Get(eventUri); // ERROR
EXAMPLE 2:
foreach (EventEntry entry in entries) //collection of EventEntry
{
// do something
entry.Delete() or entry.Update() // ERROR
}
BUT CREATING NEW EVENTS ALWAYS WORKS:
string calendarUri =
string.Format("http://www.google.com/calendar/feeds/{0}/private/full";,
calendarId);
EventQuery query = new EventQuery(calendarUri);
EventFeed feed = Service.Query(query);
//create the new event
EventEntry entry = new EventEntry(
item.Course.Title + " - " + item.Course.Level,
item.Course.Description,
item.Location.Site.Name + " - " + item.Location.Name
);
entry.Times.Clear();
entry.Times.Add(new Google.GData.Extensions.When
{
StartTime = date.StartTime,
EndTime = date.EndTime
});
//insert the event into the calendar
EventEntry newEntry = feed.Insert(entry); // NEVER EVER FAILS
Could someone offer some insight into what's going on?
Many thanks,
S
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