如何在其他人的Outlook日歷上刪除約會並在C#中發送取消通知

Question

我正在構建一個調度程序面試管理應用程序，當在調度程序中插入新約會時，我將新約會設置給發送它的人和接收它的人，第一部分是我我將所謂的約會作為 Vcard 發送給接收者，但我也想將其添加為日歷對象，但我找不到 MSDN 信息的方式。 這是我用來添加新約會的代碼：

private void AddAppointment(Appointment NewAppointment, string MailTo)
        {
            Microsoft.Office.Interop.Outlook.Application outlookApp = new Microsoft.Office.Interop.Outlook.Application(); // creates new outlook app
            Microsoft.Office.Interop.Outlook.AppointmentItem oAppointment = (Microsoft.Office.Interop.Outlook.AppointmentItem)outlookApp.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olAppointmentItem); // creates a new appointment
            oAppointment.Subject = NewAppointment.Subject; // set the subject
            oAppointment.Body = NewAppointment.Description; // set the body
            oAppointment.Location = NewAppointment.Location; // set the location
            oAppointment.Start = NewAppointment.Start; // Set the start date 
            oAppointment.End = NewAppointment.End; // End date 
            oAppointment.ReminderSet = true; // Set the reminder
            oAppointment.RequiredAttendees = MailTo;
            if (NewAppointment.HasReminder)
            {
                oAppointment.ReminderMinutesBeforeStart =  Convert.ToInt32(NewAppointment.Reminder.TimeBeforeStart.TotalMinutes);
                }
            else
                oAppointment.ReminderMinutesBeforeStart = 60;
            // reminder time
            oAppointment.Importance = Microsoft.Office.Interop.Outlook.OlImportance.olImportanceHigh; // appointment importance
            oAppointment.BusyStatus = Microsoft.Office.Interop.Outlook.OlBusyStatus.olBusy;
            oAppointment.Save();
            Microsoft.Office.Interop.Outlook.MailItem mailItem = oAppointment.ForwardAsVcal();
            mailItem.To = MailTo;
            mailItem.Send();
            Thread.Sleep(5000);
            CancellAppointment(oAppointment.GlobalAppointmentID);
        }

這是我用來取消約會的代碼，但它只對我取消（我在我的 PC 上使用 Outlook 應用程序），但我也需要將它取消給其他人：

 private void CancellAppointment(string AppointmentID)
        {
            Microsoft.Office.Interop.Outlook.Application OlApp = new Microsoft.Office.Interop.Outlook.Application();
            NameSpace OlNamspace = OlApp.GetNamespace("MAPI");
            MAPIFolder AppointmentFolder = OlNamspace.GetDefaultFolder(OlDefaultFolders.olFolderCalendar);
            AppointmentFolder.Items.IncludeRecurrences = true;
            foreach (AppointmentItem app in AppointmentFolder.Items)
            {
                if (app.GlobalAppointmentID == AppointmentID)
                {
                    app.MeetingStatus = OlMeetingStatus.olMeetingCanceled;
                    app.ForceUpdateToAllAttendees = true;
                    app.Delete();
                }
            } 

非常感謝任何幫助

Answer 1

你應該使用app.Send(); 在app.Delete();