Outlook COMException
问题 System.Runtime.InteropServices.COMException ..Your server administrator has limited the number of items you can open simultaneously... at Microsoft.Office.Interop.Outlook._AppointmentItem.get_UserProperties() var calendar = outlookApplication.GetNamespace("MAPI").GetDefaultFolder(OlDefaultFolders.olFolderCalendar); if (calendar == null || calendar.Items == null) { return null; } var calendarItems = calendar.Items; if (calendarItems != null && calendarItems.Count > 0) { // Dont convert to LINQ