如何在Google日历中创建“recurData”？

我想使用Google API创建日历的定期事件。 我正在关注链接：

1. Google Calendar API

   我没有得到如何创建“recurData”。 我无法修改String并将其作为参数传递。 尝试过DDay.iCal版本0.80。 也。

2. DDay.iCal

给出了一些示例代码。我尝试了它们。 我能够创建“.ics”文件。

但是当我将此文件内容作为“recurData”传递时

出错：{“执行请求失败： http ： //www.google.com/calendar/feeds/user@domain.com/private/full？ gsessionid = AHItK5wrSIoJVawFjGt- 0g ”}

我的icf文件内容是：

BEGIN:VCALENDAR VERSION:2.0 PRODID:-//DDay.iCal//NONSGML ddaysoftware.com//EN BEGIN:VEVENT CREATED:20100309T132930Z DESCRIPTION:The event description DTEND:20100310T020000 DTSTAMP:20100309T132930Z DTSTART:20100309T080000 LOCATION:Event location SEQUENCE:0 SUMMARY:18 hour event summary UID:396c6b22-277f-4496-bbe1-d3692dc1b223 END:VEVENT BEGIN:VEVENT CREATED:20100309T132930Z DTEND;VALUE=DATE:20100315 DTSTAMP:20100309T132930Z DTSTART;VALUE=DATE:20100314 SEQUENCE:0 SUMMARY:All-day event UID:ac25cdaf-4e95-49ad-a770-f04f3afc1a2f END:VEVENT END:VCALENDAR 

我用“Example6”制作了它。

 EventEntry myEntry = new EventEntry(); myEntry.Title.Text = "Hello recurring Event!"; // Set a location for the event. Where eventLocation = new Where(); eventLocation.ValueString = "here and there"; entry.Locations.Add(eventLocation); // Any other event properties // Recurring event: String recurData = "DTSTART;VALUE=DATE:20070501rn" + "DTEND;VALUE=DATE:20070502rn" + "RRULE:FREQ=WEEKLY;BYDAY=Tu;UNTIL=20070904rn"; Recurrence recurrence = new Recurrence(); recurrence.Value = recurData; myEntry.Recurrence = recurrence;