C# 判断时间段是否相交

1. 判断两个起止时间是否相交：

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. 传入起止时间的表达式，判断与已知时间段的交集，生成Mongo查询：

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;
        }

其中From和To为两个时间属性

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