for (i = 0, n = count; i < n; i++) {
if (childrenForEvent((EOEvent)evs.objectAtIndex(i)).count()!=0)
mutableFiltered.addObject(evs.objectAtIndex(i));
}
mutableFiltered.sortUsingComparator(_eventAscendingComparator);
filtered = mutableFiltered;
}
} catch (NSComparator.ComparisonException e) {