将json信息保存在windows商店应用程序中的对象中

在一个windows商店应用程序项目中，我从一个Web服务器上得到一个Json，其中包含几个项目，如下所示http://paste2.org/dJP85EOJ（这是一项）

然后我有一个读取json信息的方法，并用该信息创建一个对象

public async Task createMeet(IJsonValue item, List<Meeting> listMeetings)
    {
        Meeting meeting = new Meeting();
        List<MeetingInvitee> invitees = new List<MeetingInvitee>();
        List<MeetingPoint> meetingPoints = new List<MeetingPoint>();
        MeetingsDB MeetForDB = new MeetingsDB();
        GappService gappservice = new GappService();

        try
        {
            JsonObject newMeet;
            JsonObject.TryParse(item.Stringify(), out newMeet);
            if (newMeet.ContainsKey("_id"))
                if (newMeet["_id"].ValueType != JsonValueType.Null)
                {
                    meeting.Id = newMeet["_id"].GetString();
                    MeetForDB.Id = newMeet["_id"].GetString();
                }
            if (newMeet.ContainsKey("name"))
                if (newMeet["name"].ValueType != JsonValueType.Null)
                {
                    meeting.Name = newMeet["name"].GetString();
                    MeetForDB.Name = newMeet["name"].GetString();
                }
            if (newMeet.ContainsKey("description"))
                if (newMeet["description"].ValueType != JsonValueType.Null)
                {
                    meeting.Description = newMeet["description"].GetString();
                    MeetForDB.description = newMeet["description"].GetString();
                }
            if (newMeet.ContainsKey("meetingType"))
                if (newMeet["meetingType"].ValueType != JsonValueType.Null)
                {
                    meeting.MeetingType = newMeet["meetingType"].GetString();
                    MeetForDB.meetingType = newMeet["meetingType"].GetString();
                }
            if (newMeet.ContainsKey("meetingStatus"))
                if (newMeet["meetingStatus"].ValueType != JsonValueType.Null)
                {
                    meeting.Status = newMeet["meetingStatus"].GetString();
                    MeetForDB.meetingStatus = newMeet["meetingStatus"].GetString();
                }
            if (newMeet.ContainsKey("organizer"))
                if (newMeet["organizer"].ValueType != JsonValueType.Null)
                {
                    meeting.Organizer = newMeet["organizer"].GetString();
                    MeetForDB.organizer = newMeet["organizer"].GetString();
                }
            if (newMeet.ContainsKey("alternativeOrganizer"))
                if (newMeet["alternativeOrganizer"].ValueType != JsonValueType.Null)
                {
                    meeting.AlternativeOrganizer = newMeet["alternativeOrganizer"].GetString();
                    MeetForDB.alternativeOrganizer = newMeet["alternativeOrganizer"].GetString();
                }
            if (newMeet.ContainsKey("organization"))
                if (newMeet["organization"].ValueType != JsonValueType.Null)
                {
                    meeting.Organization = newMeet["organization"].GetString();
                    MeetForDB.organization = newMeet["organization"].GetString();
                }
            if (newMeet.ContainsKey("startDate"))
                if (newMeet["startDate"].ValueType != JsonValueType.Null)
                {
                    meeting.StartDate = GetDateTime(newMeet["startDate"].GetNumber());
                    MeetForDB.startDate = newMeet["startDate"].GetNumber();
                }
                ....
}

它是一个很长的方法，里面有一些嵌套的foreach，因此创建最终对象需要几秒钟的时间。

我想知道的是，是否有一种方法可以将json信息直接传递给对象，而不必一次读取一个字段。