/// <summary>
        /// 获取日程详情
        /// </summary>
        /// <param name="ProjectId">项目id</param>
        /// <param name="EventId">日程id</param>
        /// <returns>Event</returns>
        public async static Task<Event> GetEventDetail(string ProjectId, string EventId)
        {
            string url = apiUrl + "events" + EventId + "?pid=" + ProjectId + "&access_token=" + AccessToken;
            Dictionary<string, string> parameters = new Dictionary<string, string>();

            string json = await Helper.HttpHelper.DoGet(url, parameters);
            if (string.IsNullOrEmpty(json))
            {
                return null;
            }
            else
            {
                //开始解析返回数据
                try
                {
                    Debug.WriteLine("开始解析返回json---\n" + json);
                    JObject result = JObject.Parse(json);
                    Debug.WriteLine("解析返回json成功---\n");

                    Event myEvent = new Event();
                    myEvent.EventId = result["event_id"].ToString();
                    myEvent.Name = result["name"].ToString();
                    myEvent.Summary = result["summary"].ToString();
                    myEvent.Location = result["location"].ToString();
                    myEvent.StartTime = (DateTime)result["start"];
                    myEvent.EndTime = (DateTime)result["end"];
                    myEvent.Recurrence = (Event.EventRecurrence)int.Parse(result["recurrence"].ToString());


                    foreach (JObject jWacher in (JArray)result["attendees"])
                    {
                        UserProfile wacher = new UserProfile();
                        wacher.Uid = jWacher["uid"].ToString();
                        wacher.Name = jWacher["name"].ToString();
                        wacher.NickName = jWacher["display_name"].ToString();
                        wacher.HeadImage = jWacher["avatar"].ToString();
                        wacher.Description = jWacher["desc"].ToString();
                        wacher.Status = (UserProfile.UserStatus)int.Parse(jWacher["status"].ToString());
                        wacher.Online = (UserProfile.UserOnline)int.Parse(jWacher["online"].ToString());
                        myEvent.Attendees.Add(wacher);
                    }

                    ProjectInfo project = new ProjectInfo();
                    JObject jProject = (JObject)result["project"];
                    project.Pid = jProject["pid"].ToString();
                    project.Name = jProject["name"].ToString();
                    project.Picture = jProject["pic"].ToString();
                    project.BackgroundColor = jProject["bg"].ToString();
                    myEvent.Project = project;

                    return myEvent;
                }
                catch (Exception)
                {
                    Debug.WriteLine("解析返回json失败---\n" + json);
                    return null;
                }
            }

        }
        /// <summary>
        /// 我参与的今日日程
        /// </summary>
        /// <param name="ProjectId">项目id</param>
        /// <returns>ObservableCollection<Event></returns>
        public static async Task<ObservableCollection<Event>> GetTodayEventList(string ProjectId)
        {
            string url = apiUrl + "events/today";
            Dictionary<string, string> parameters = new Dictionary<string, string>();
            parameters.Add("access_token", AccessToken);
            parameters.Add("pid", ProjectId);

            string json = await Helper.HttpHelper.DoGet(url, parameters);
            if (string.IsNullOrEmpty(json))
            {
                return null;
            }
            else
            {
                //开始解析返回数据
                try
                {
                    Debug.WriteLine("开始解析返回json---\n" + json);
                    JArray result = JArray.Parse(json);
                    Debug.WriteLine("解析返回json成功---\n");

                    ObservableCollection<Event> EventList = new ObservableCollection<Event>();
                    foreach (JObject obj in result)
                    {
                        Event myEvent = new Event();
                        myEvent.EventId = obj["event_id"].ToString();
                        myEvent.Name = obj["name"].ToString();
                        myEvent.Summary = obj["summary"].ToString();
                        myEvent.Location = obj["location"].ToString();
                        myEvent.StartTime = (DateTime)obj["start"];
                        myEvent.EndTime = (DateTime)obj["end"];
                        myEvent.Recurrence = (Event.EventRecurrence)int.Parse(obj["recurrence"].ToString());


                        foreach (JObject jWacher in (JArray)obj["attendees"])
                        {
                            UserProfile wacher = new UserProfile();
                            wacher.Uid = jWacher["uid"].ToString();
                            wacher.Name = jWacher["name"].ToString();
                            wacher.NickName = jWacher["display_name"].ToString();
                            wacher.HeadImage = jWacher["avatar"].ToString();
                            wacher.Description = jWacher["desc"].ToString();
                            wacher.Status = (UserProfile.UserStatus)int.Parse(jWacher["status"].ToString());
                            wacher.Online = (UserProfile.UserOnline)int.Parse(jWacher["online"].ToString());
                            myEvent.Attendees.Add(wacher);
                        }

                        ProjectInfo project = new ProjectInfo();
                        JObject jProject = (JObject)obj["project"];
                        project.Pid = jProject["pid"].ToString();
                        project.Name = jProject["name"].ToString();
                        project.Picture = jProject["pic"].ToString();
                        project.BackgroundColor = jProject["bg"].ToString();
                        myEvent.Project = project;

                        EventList.Add(myEvent);
                    }
                    return EventList;
                }
                catch (Exception)
                {
                    Debug.WriteLine("解析返回json失败---\n" + json);
                    return null;
                }
            }
        }