C # Determines whether the time period intersects

1. Determine if the two starting and ending times intersect:

public static bool Istimebetween (TimeSpan input, TimeSpan start, TimeSpan end, BOOL Frominclusice, bool toinclusive)        {            //http://www.php.cn/            //See if Start comes before end            if (end < start)            {                return                    ( Toinclusive && (input <= end)) | | (!toinclusive && (Input < end)))                    | |                    (Frominclusice && (Input >= start)) | | (!frominclusice && (Input > Start));            }            else            {                return                    (frominclusice && (Input >= start)) | | (!frominclusice && (Input > Start)))                    && (                    (toinclusive && (input <= end)) | | (!toinclusive && (Input < end));}        }

2. The expression of incoming start and end time, and the intersection of the known time period, to generate MONGO query:

Public Imongoquery getmongoqueryintersectwith<tcollection> (            expression<func<tcollection, DateTime >> Fromexp,             expression<func<tcollection, datetime>> toexp)        {            var rangeto = Query.and ( Query<tcollection>. GTE (Toexp, to), Query<tcollection> LTE (Fromexp, to));            var rangefrom = Query.and (query<tcollection>. GTE (Toexp, from), Query<tcollection>. LTE (Fromexp, from));            var rangequery = query.or (Rangeto, Rangefrom,                 Query.and (QUERY<TCOLLECTION>. GTE (Fromexp, from), Query<tcollection>. LTE (Toexp, to));            return rangequery;        }

Where from and to are two time attributes

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