C# 更新现有Outlook日历约会

我正在实现一个管理会议的应用程序。作为功能之一，它可以向Outlook发送会议请求

问题是，更新会议时，发送的邮件不会更新Outlook日历。我正在使用MS Outlook 2003

有人知道我做错了什么吗

我按照计划执行了会议要求

在发送请求时，我根据的要求更改了一些字段

下面是两条消息的组合

BEGIN:VCALENDAR
VERSION:2.0
METHOD:REQUEST
PRODID:-//ddaysoftware.com//NONSGML DDay.iCal 1.0//EN
BEGIN:VEVENT
ATTENDEE;CN=Attendee One;RSVP=TRUE:MAILTO:komerciala@email.eu
ATTENDEE;CN=User Super;RSVP=TRUE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION
 ;CUTYPE=ORGANIZER;ORGANIZER=:MAILTO:master@email.com
CLASS:PUBLIC
COMMENT:
1. CREATED:20120905T151819
2. CREATED:20120905T151945
DESCRIPTION:
1. DTEND:20120905T163000
2. DTEND:20120906T163000
1. DTSTAMP:20120905T151819
2. DTSTAMP:20120905T151945
1. DTSTART:20120905T160000
2. DTSTART:20120906T160000
1. LAST-MODIFIED:20120905T151819
2. LAST-MODIFIED:20120905T151945
LOCATION:LJUBLJANA\, CESTA V MESTNI LOG   55
ORGANIZER;CN=User Super:MAILTO:master@email.com
PRIORITY:5
1. SEQUENCE:0
2. SEQUENCE:1
SUMMARY:kioliko
UID:5c6beaaf-1479-4028-b813-b9a66a2e3640
BEGIN:VALARM
ACTION:Display
TRIGGER:-P1D
END:VALARM
END:VEVENT
END:VCALENDAR

仅在会议创建中显示的行 仅在会议更新中显示的行–该行不起作用。 两条消息中都会出现其他行

BEGIN:VCALENDAR
VERSION:2.0
METHOD:REQUEST
PRODID:-//ddaysoftware.com//NONSGML DDay.iCal 1.0//EN
BEGIN:VEVENT
ATTENDEE;CN=Attendee One;RSVP=TRUE:MAILTO:komerciala@email.eu
ATTENDEE;CN=User Super;RSVP=TRUE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION
 ;CUTYPE=ORGANIZER;ORGANIZER=:MAILTO:master@email.com
CLASS:PUBLIC
COMMENT:
1. CREATED:20120905T151819
2. CREATED:20120905T151945
DESCRIPTION:
1. DTEND:20120905T163000
2. DTEND:20120906T163000
1. DTSTAMP:20120905T151819
2. DTSTAMP:20120905T151945
1. DTSTART:20120905T160000
2. DTSTART:20120906T160000
1. LAST-MODIFIED:20120905T151819
2. LAST-MODIFIED:20120905T151945
LOCATION:LJUBLJANA\, CESTA V MESTNI LOG   55
ORGANIZER;CN=User Super:MAILTO:master@email.com
PRIORITY:5
1. SEQUENCE:0
2. SEQUENCE:1
SUMMARY:kioliko
UID:5c6beaaf-1479-4028-b813-b9a66a2e3640
BEGIN:VALARM
ACTION:Display
TRIGGER:-P1D
END:VALARM
END:VEVENT
END:VCALENDAR

谢谢大家!