我正在使用EWS Exchange Sync，在我的一種方法中，這就是說我超出了可以在單個請求中刪除的1000個項目的最大數(shù)量。是否可以解決此問題，而不是從日歷中刪除所有內(nèi)容，而只從今天起刪除，而不是及時刪除？導(dǎo)致錯誤的方法在這里： public void DeleteAllSafeAppointments(SCDriftConnection conn, ExchangeService service, SAFEAgent agent) { if(conn == null) throw new ArgumentNullException("conn"); if(service == null) throw new ArgumentNullException("service"); if(agent == null) throw new ArgumentNullException("agent"); try { var calendar = GetAgentCalendar(service, agent); service.DeleteItems(GetAllSafeAppointments(calendar).Select(a => a.Id), DeleteMode.HardDelete, SendCancellationsMode.SendToNone, null); var scheduledActivitiesOnAgent = ScheduledActivity.GetScheduleToExchange(new QueryParameters<ScheduledActivity>(s => s.Initials == agent.Initials && s.ExchangeId != null)); foreach(var schedAct in scheduledActivitiesOnAgent) { schedAct.ExchangeId = null; schedAct.Save(conn); } ResetAgentSyncState(calendar, agent); } catch(Exception ex) { throw new Exception("An error occured while clearing exchange calendar for " + agent.Initials, ex); } agent.ExchangeSyncronizationSettings.LastSync = DateTime.Now; agent.ExchangeSyncronizationSettings.Save(conn); }
2 回答
LEATH
TA貢獻1936條經(jīng)驗 獲得超7個贊
private IEnumerable<Appointment> GetAllSafeAppointments(Folder calendar) {
ItemView view = new ItemView(512);
view.PropertySet = new PropertySet(BasePropertySet.IdOnly);
SearchFilter filter = new SearchFilter.SearchFilterCollection(LogicalOperator.And,
new SearchFilter.IsEqualTo(SafeAppointmentFlag, true));
while(true) {
var results = SendExchangeRequest(() => calendar.FindItems(filter, view));
foreach(var r in results.OfType<Appointment>())
yield return r;
if(!results.MoreAvailable)
break;
view.Offset = results.NextPageOffset.Value;
}
}
暮色呼如
TA貢獻1853條經(jīng)驗 獲得超9個贊
您可以批量處理請求。我為此編寫了一個通用批處理方法：
private IEnumerable<IEnumerable<T>> Batch<T>(IEnumerable<T> input, int batchSize)
{
List<T> items = new List<T>();
foreach (var item in input)
{
items.Add(item);
if (items.Count == batchSize)
{
yield return items;
items = new List<T>();
}
}
if (items.Count > 0)
{
yield return items;
}
}
現(xiàn)在，您可以使用它將您的物品分成幾批：
var batches = Batch(GetAllSafeAppointments(calendar).Select(a => a.Id), 1000);
foreach (var batch in batches)
{
service.DeleteItems(batch, DeleteMode.HardDelete, SendCancellationsMode.SendToNone, null);
}
現(xiàn)在最多一次將刪除1000個。
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