public SocialQueryString GetQueryString()
        {
            SocialQueryString qs = new SocialQueryString();

            if (Count > 0)
            {
                qs.Add("count", Count);
            }
            if (MaxTimestamp != null)
            {
                qs.Add("max_timestamp", SocialUtils.GetUnixTimeFromDateTime(MaxTimestamp.Value));
            }
            if (MinTimestamp != null)
            {
                qs.Add("min_timestamp", SocialUtils.GetUnixTimeFromDateTime(MinTimestamp.Value));
            }
            if (MinId != null)
            {
                qs.Add("min_id", MinId);
            }
            if (MaxId != null)
            {
                qs.Add("max_id", MaxId);
            }
            return(qs);
        }