向谷歌日历添加附件

Question

我正在尝试使用谷歌API从谷歌云端硬盘添加附件到谷歌日历。我尝试遵循以下代码，该代码可以正确执行，没有任何异常或错误，但未在日历事件中添加附件。

 private void  addattachment(String eveID, String fileID, string Calid)
     {
         try
         {
            Google.Apis.Calendar.v3.Data.Event f_event  =   m_CalService.Events.Get(Calid, eveID).Execute();
            Google.Apis.Drive.v3.Data.File f_File = m_DriveService.Files.Get(fileID).Execute();
            List<EventAttachment> f_ListEventAttach = (List<EventAttachment>)f_event.Attachments;
            if (f_ListEventAttach == null)
                f_ListEventAttach = new List<EventAttachment>();
            f_ListEventAttach.Add(new EventAttachment() 
            { FileUrl = FileUrl,
                MimeType = f_File.MimeType,
                Title = f_File.Name}
                            );
            Google.Apis.Calendar.v3.Data.Event newEvent = new Google.Apis.Calendar.v3.Data.Event();
            newEvent.Attachments = f_ListEventAttach;
            m_CalService.Events.Patch(newEvent, Calid, eveID).SupportsAttachments = true;
            m_CalService.Events.Patch(newEvent, Calid, eveID).Execute();

         }
    }

谢谢雷努卡

Answer 1

                Google.Apis.Drive.v3.Data.File f_file1 = null;
                f_file1 = m_DriveService.Files.Get("fileID").Execute();
                EventAttachment attach1 = new EventAttachment();
                //attach.FileId = file.Id;
                attach1.Title = f_file1.Name;
                attach1.MimeType = f_file1.MimeType;
                attach1.FileUrl = FileURL;
                List<EventAttachment> listEveAttach1 = new List<EventAttachment>();
                listEveAttach1.Add(attach1);
                f_CalEventObj.Attachments = listEveAttach1;
                m_CalService.Events.Insert(f_CalEventObj, obj_addedCal).SupportsAttachments = true;
                EventsResource.InsertRequest obj_request = m_CalService.Events.Insert(f_CalEventObj, obj_addedCal);
                obj_request.SupportsAttachments = true;
                Google.Apis.Calendar.v3.Data.Event obj_AddedEvent = obj_request.Execute();

它工作正常..